if enough of a monoprotic acid is dissolved in water to produce a 0.0126 m solution with a ph of 6.51 , what is the equilibrium constant, ka, for the acid?

Answers

Answer 1

The equilibrium constant, Ka, for the acid is 1.08 x [tex]10^{-13}[/tex].

For the equilibrium constant, Ka, for a monoprotic acid, we can use the relationship between the acid's dissociation constant (Ka) and the acid's concentration and the pH of the solution.

The relationship between the acid's dissociation constant (Ka), the acid's concentration (c), and the pH of the solution (pH) is given by the following equation:

Ka =   [tex]\frac{(H+)^{2}}{HA}[/tex]          

Where [H+] is the concentration of hydrogen ions in the solution, [HA] is the concentration of the acid, and [A-] is the concentration of the conjugate base.

We know that the acid concentration is 0.0126 M and the pH of the solution is 6.51. We can use this information to calculate the hydrogen ion concentration in the solution using the following equation:

pH = -log[H+]

[H+] =  [tex]10^{-pH}[/tex]

[H+] = [tex]10^{-6.51}[/tex] = 3.16 x [tex]10^{-7}[/tex]

So, the hydrogen ion concentration in the solution is 3.16 x 10^-7 M

We can now use this information to calculate the equilibrium constant, Ka, for the acid:

Ka =  [tex]\frac{(H+)^{2}}{HA}[/tex]

Ka =  [tex]\frac{(3.16 * 10^{-7}) ^{2} }{ 0.0126}[/tex]

Ka = 1.08 x [tex]10^{-13}[/tex]  

So, the equilibrium constant, Ka, for the acid is 1.08 x [tex]10^{-13}[/tex].

To know more about Monoprotic acid,

https://brainly.com/question/1155259

#SPJ4


Related Questions

Which kind of cycle is the rock cycle-one with a set path or one with many possible paths? Construct an explanation that describes at least two possible changes to a rock.

Answers

Every rock has its place in the rock cycle. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

What is the rock cycle?

The rock cycle is described as a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous.

There are many possible paths a rock can take to become different types of rock, and that is because there is no needed path for a rock to change in form.

WE can explain more using the example that a metamorphic rock can become sedimentary rock by erosion and deposition, but the original metamorphic rock was not ever igneous rock.

Learn more about rock cycle. at: https://brainly.com/question/12863450

#SPJ1

HNO3 + H3PO3 → NO + H₂PO4+H₂O (Acidic)
What is the complete step by step oxidation reduction reaction?

Answers

Answer:

The reaction provided is not a redox reaction. The equation shows the neutralization reaction between Nitric acid (HNO3) and Phosphoric acid (H3PO3) to produce Nitrogen monoxide (NO), Dihydrogen Phosphate (H2PO4) and water (H2O).

When two or more acids are mixed together, they can neutralize each other. This is called a neutralization reaction. The acid and the base will react to form a salt and water. In this case, Nitric acid is the acid and Phosphoric acid is the base.

The equation for this neutralization reaction can be balanced as follows:

HNO3 + H3PO3 → NO + H2PO4 + H2O

Where HNO3 = Nitric acid

H3PO3 = Phosphoric acid

NO = Nitrogen monoxide

H2PO4 = Dihydrogen Phosphate

H2O = water

The reaction is acidic in nature due to the presence of H+ ions in the products.

In summary, the reaction provided is a neutralization reaction, not a redox reaction. The equation shows that Nitric acid and Phosphoric acid neutralize each other to form Nitrogen monoxide, Dihydrogen Phosphate and water. The reaction is

which bonds are covalent bonds? question 19 options: a) peptide bonds b) glycosidic bonds c) phosphodiester bonds d) all of these choices are correct.

Answers

Peptide bonds, glycosidic bonds, phosphodiester  bonds are covalent bonds.

A covalent bond is formed by the equal sharing of electrons by two atoms.

The bond which is  formed between the first carbon atom of one monosaccharide with the four carbon atoms present in the neighboring monosaccharide unit and, which results in the formation of a polysaccharide unit is known as a Glycosidic bond.  In the formation of this bond, a water molecule is released as a by-product.

A covalent bond which is formed between the carboxyl group of one amino acid and the amino group of the neighboring amino acids, is known as a peptide bond. This bond formation involves release of a water molecule as a by-product.

The phosphate-hydroxyl linkage present between two nucleotides where the phosphate group is attached to the hydroxyl group(OH) at the 5'-carbon of pentose sugar is bonded to the hydroxyl group of the 3'-carbon of the pentose sugar present in the next neighboring nucleotide. This bond  is known as a phosphodiester bond.

Thus, option (d) is correct

To know more about covalent bonds here

https://brainly.com/question/2512088

#SPJ4

a student mixes 50.0 ml of 0.10 m pb(no3)2 solution with 50.0 ml of 0.10 m kcl. a white precipitate forms, and the concentration of the chloride ion becomes very small. which list places the concentrations of the remaining ions in order of decreasing concentration?

Answers

[ NO3-] > [K+] > [Pb2+] is correctly  places the concentrations of the remaining ions in order of decreasing concentration.

As from the given data, we know that,

       Pb(NO3)2 + 2KCl = PbCl2 + 2KNO3

we know,

Pb(NO3)2= 0.005mol

2KCL = 0.005mol

PbCl2 = 0.0025mol

2KNO3 = 0.005mol

SO,

K+ and NO3- spectators 2NO3- for each K+

Pb and K+ are equal but some Pb precipitate

Hence, giving the concentration order as,

[ NO3-] > [K+] > [Pb2+] and the concentration of the chloride ion becomes very small and hence it is negligible.

For more such questions on concentration, Visit:

https://brainly.com/question/17206790

#SPJ4

How many milligrams are in 5.7 grams

Answers

Answer:

5700 milligrams

Explanation:

To go to a smaller unit you move the decimal to the right.

How many milligrams are in 5.7 grams? The answer is 5,700 milligrams.
1 gram equals to 1,000 milligrams. So to find how many milligrams are in 5.7 grams, simply take 5.7 and divide that by 1,000, which gives you 5,700.

an empty container with a volume of 160.0 cm3 is weighed and found to have a mass of 72.3 g. the container is filled with a liquid and reweighed. the mass of the container and the liquid is 199.9 g. what is the density of the liquid to the appropriate number of significant figures?

Answers

An empty container with a volume of 160.0 cm³ is weighed and found to have a mass of 72.3 g. The density of the liquid is 0.797 g/ cm³.

The Mass of empty container = 72.3 g

The Mass of container + Liquid = 199.9 g

The Mass of Liquid =?

The Mass of Liquid = (Mass of container + Liquid) – (Mass of the empty                

                                                                                          container)

The Mass of Liquid = 199.9 - 72.3

The Mass of Liquid = 127.6 g

The volume = 160 cm³

The density is given as:

Density = mass / volume

Density = 127.6 / 160

Density = 0.797 g/cm³

To learn more about density here

https://brainly.com/question/24575988

#SPJ4

a concentrated aqueous solution of sulfuric acid (h2so4) has a density of 1.509 g/ml and contains 10% sulfuric acid by mass. calculate the molality of sulfuric acid.

Answers

Molality of sulfuric acid is 1.1.

As we know that density of solution = 1.509 = mass of solution \ Volume.

10% of [tex]H{_2}SO_4[/tex] by mass,

[tex]\frac{10}{100} \times 1.509[/tex] v (g)

As the mass of solvent [tex]=\frac{90}{100}\times 1.509 V(g)[/tex]

98 g of [tex]H{_2}SO_4[/tex] contains moles = 1,

[tex]\frac{10 \times 1.509 V g}{100}[/tex] of [tex]H{_2}SO_4[/tex] contains moles = [tex]\frac{1.509 .v}{10 \times 98}[/tex] moles

Molality = moles of solute/ Mass of solvent (kg)

             =[tex]\frac{1.509 \times 100 \times 1000}{10 \times 98 \times 1.509 .V (kg)}[/tex]

             = 1.1

Hence, the Molality of sulphuric acid is 1.1.

To know more about molality:

brainly.com/question/26921570

#SPJ4

which chemical pathway appears to be important both in some types of psychotic behavior and in the reinforcing properties of various drugs?

Answers

The chemical pathway appears to be important both in some types of psychotic behavior and in the reinforcing properties of various drugs is  Mesolimbic dopamine pathway.

The reinforcing and addictive qualities of substances like nicotine are greatly influenced by the mesolimbic dopamine system.

Dopamine serves a variety of functions and is both a neurotransmitter and a hormone.

These mesolimbic pathways aid in the distribution of dopamine throughout the body. The nucleus accumbens receives dopamine from the ventral tegmental region via the mesolimbic dopamine pathways.

Dopamine produces a sense of reward and pleasure in the nucleus accumbens.

Dopamine flows from the ventral tegmental region to the nucleus accumbens anytime there is a sense of rewarding or pleasurable stimuli. Dopamine provides a sense of positive feeling, which leads to addictive behavior ( ie, drugs).

To know more about dopamine,

brainly.com/question/4560426

#SPJ4

a fictitious element z has an average atomic mass of 223.13 u. element z has two naturally occuring isotopes. the more abundant isotope has an exact mass of 224.75 u and a relative abundance of 62.94%. calculate the exact mass of the second isotope.

Answers

The exact mass of the second isotope is  224.15 u

The following equation can be used to get the average atomic mass:

average atomic mass = (% of the first isotope/100) x mass of the first isotope+  (% of the second  isotope/100) x mass of the second isotope)

Due to this:

Initially isotope:

% = 62.94 %

Mass = 224.75 u

The second isotope is:

Since there are only two isotopes of the element, the second percentage is equal to 100 minus the first percentage.

% = 100 % - 62.94 % = 37.06 %

Assume Mass = x u.

Average Mass = 223.13 u, as stated

Thus,

average atomic mass = (% of the first isotope/100) x mass of the first isotope+  (% of the second  isotope/100) x mass of the second isotope)

223.13 = (62.94 % x 224.75) +( 37.06 % x 223.13 )

                   100                         100

When we solve for x, we obtain:

x = 224.15 u

learn more about isotope at https://brainly.com/question/11680817

#SPJ4

4NH3 +5O2→4NO+6H2O (Run at constant temperature and pressure)

If 3.20 liters of ammonia gas are reacted, how many liters of oxygen gas are consumed?

a
3.20 L O2

b
4.00 L O2

c
2.56 L O2

Answers

If 3.20 liters of ammonia gas reacts, the amount of oxygen gas that will be consumed is 4L of oxygen gas (option B).

How to calculate volume using stoichiometry?

Stoichiometry refers to the quantitative relationship between the reactants and products of a specific reaction or equation.

According to this question, ammonia gas reacts with oxygen gas to produce nitrogen oxide and water as follows:

4NH₃ + 5O₂ → 4NO + 6H₂O

Based on the above equation, 4 moles of ammonia gas reacts with 5 moles of oxygen gas.

This means that 3.2 litres of ammonia gas will react with 3.2 × 5/4 = 4 litres of oxygen gas.

Learn more about stoichiometry at: https://brainly.com/question/18382922

#SPJ1

a 140.0 g sample of water at 20.0 °c is mixed with 100.0 g of a certain metal at 95.0 °c. after thermal equilibrium was established, the temperature of the mixture is 24.6 °c. what is the specific heat capacity of the metal?

Answers

Specific heat capacity of the metal  by the given values is 5.389 J/ g°C  

Mass of water = 140.0 g

Initial temperature of water = 20.0°C

Mass of a certain metal = 100.0 g

Initial temperature of metal = 100.0°C

Final temperature of water and metal = 95.0°C

Since the metal is at a higher initial temperature it will lose heat and the water having a lower initial temperature will gain heat.  

Thus, heat lost by metal = Heat gained by water  

formula: (mass metal )(initialT - finalT)( Cp metal ) = ( mass water )(finalT- initalT)( Cp water)  

After plugging in the given data we get,  

(100.0 g )(100.0 °C -95.0°C)( Cp metal) = (140.0g )(24.6°C-20.0°C) (4.184 J/g°C)  

(100.0g )(5.0C)( Cp metal )=(140.0g )(4.6°C)(4.184 J/g°C)  

(500 g°C) (Cp metal) = 2694.5 J  

(Cp metal) =5.389 J/ g°C  

Thus, specific heat capacity(Cp) of metal = 5.389 J/ g°C

learn more about specific heat capacity Refer: brainly.com/question/28941910

#SPJ4

Three magnesium isotopes have atomic masses and relative abundances of 23.995 amu (78.99%), 24.986 amu (10.00%), and 25.992 (11.01%). Calculate the average atomic mass of magnesium.
i’ll give brainliest

Answers

You would multiple the percentages times the atomic mass and then add each of them together.

Ex. (23.995)(.7899)+(24.986)(.10)+(25.992)(.1101). = 24.3139 amu

Answer:

24.3139697

Explanation:

23.995(0.7899)+24.986(0.1000)+25.992(0.1101) = 24.3139697

a smartfood package indicates that one 17.7 g serving contains 51% carbohydrates. which conversion factor best represents this information?

Answers

The conversion factor that best represents the information provided in the smartfood package is grams of carbohydrates per gram of serving.

 

The package states that one 17.7 gram serving contains 51% carbohydrates, which can be converted to grams by multiplying the percentage by the total weight of the serving. So, 51% of 17.7 grams is approximately 9.09 grams of carbohydrates per serving. To express this as a conversion factor, it would be written as 9.09 grams of carbohydrates per gram of serving. This conversion factor can be used to convert the number of grams of carbohydrates in other serving sizes of the same food.

Learn more about conversion factor here: brainly.com/question/97386

#SPJ4

 

How many moles of hydrogen are produced if reacted with 0.605 moles of sodium in this reaction?
2Na + 2 H2O → 2 NaOH + H2

Answers

The number of moles of hydrogen produced if reacted with 0.605 moles of sodium in the reaction is 0.3025 moles.

How to calculate number of moles?

Stoichiometry is the study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations).

According to this question, sodium reacts with water to produce sodium hydroxide and hydrogen gas as follows:

2Na + 2H₂O → 2NaOH + H₂

Based on the reaction above, 1 moles of hydrogen is produced by the reaction of 2 moles of sodium.

Hence, 0.605 moles of sodium will react to produce 0.3025 moles of hydrogen.

Learn more about stoichiometry at: https://brainly.com/question/9743981

#SPJ1

There is a bell at the top of a church belltower that is 92m high. The bell weighs 900 N. Is it potential energy or kinetic energy? Why? Calculate the amount of energy

Answers

1. The illustration is potential energy

2. The amount of energy, given that the bell weighs 900 N is 82800 J

1. How do I know whether it potential or kinetic energy?

Potential energy is the energy possesed by an object by virtue of it's location. While kinetic energy is the energy of a moving object.

From the above information, we can conclude that the illustration from the question is potential energy

2. How do I determine the energy?

The amount of energy can be obtained as follow:

Height (h) = 92 mForce (F) = 900 N Energy (E) = ?

Energy = Force × height

Energy = 900 × 92

Energy = 82800 J

Thus, we can conclude that the energy is 82800 J

Learn more about potential energy:

https://brainly.com/question/22274239

#SPJ1

Magnesium ribbon reacts with an aqueous solution of copper(ll) chloride in a single-replacement reaction. Which are the products of the balanced net ionic equation for the reaction?

Answers

The reaction between magnesium metal and copper chloride produce magnesium chloride precipitate and copper. The net ionic equation of the reaction is given below:

[tex]\rm Mg(s) + 2Cl (aq) \rightarrow MgCl_{2} (s)[/tex]

What is ionic equation?

The ionic equation of a reaction shows all the ions participate in the reaction and their states specified in brackets. The net ionic equation represents the balanced charges in both side of ionic equation.

The balanced equation of the  given reaction is written as follows:

[tex]\rm Mg(s) + CuCl_{2} (aq) \rightarrow MgCl_{2} (s) + Cu(aq)[/tex]

Here, the copper ions are in aqueous state in both side of the reaction and they get cancelled in the net ionic equation.

Therefore, the net ionic equation represents the formation of the solid precipitate MgCl₂ as written in the reaction above.

Find more on ionic equations:

https://brainly.com/question/15466794

#SPJ1

Balance C2H4 + O2 = CO2 + H2O using the algebraic method.

Answers

Answer: C₂H₄ + 3O₂ --> 2 CO₂ + H₂O is the balanced equation

Explanation:

First, the Carbon atoms are balanced. After balancing the equation becomes:

C₂H₄ + O₂ --> 2 CO₂ + H₂O

Then the Hydrogen atoms are balanced. After balancing the equation becomes:

C₂H₄ + O₂ --> 2 CO₂ + 2H₂O

Finally, Oxygen atoms are balanced. After balancing the equation becomes:

C₂H₄ + 3O₂ --> 2 CO₂ + H₂O

Thus, the balanced equation is C₂H₄ + 3O₂ --> 2 CO₂ + H₂O

I hope this helps! :)

Follow-Up:
1. Rate is a ratio of two different kinds of measurements. Speed, for example, is a rate that depends on
the value of both distance and time. Rates, such as speed, are typically calculated by dividing one
measurement by another. Rates do not have to be related to speed. Another example of a rate
would be the price per dozen for the cost of eggs. What are at least two other examples of rates?
Describe the two measurements needed to determine those rates.

Answers

Feet and inches are the measurements needed

A body is accelerated continuously. What is the form of the graph?
A. cubic
B. inverse
C. linear
D. quadratic

Answers

Answer:

B: Inverse

Explanation:

The answer is B. inverse

estimate the specific gravities (gas) for methane and propane. their molecular weights are shown inside the back cover or in the book appendices. (commercial natural gas and commercial propane are mostly methane and propane, with small amounts of other substances, which may be ignored for this problem.) which is more dangerous, a propane leak or a methane leak? why?

Answers

The specific gravity of methane is 0.554 and the specific gravity of propane is 1.52.

The specific gravity of a gas can be calculated using the formula:

Molecular Weight of Gas / Molecular Weight of Air = Specific Gravity

For methane:

Molecular weight of methane = 16.04 g/mol

Molecular weight of air = 28.97 g/mol

Specific Gravity = 16.04 g/mol / 28.97 g/mol = 0.554

For propane:

Molecular weight of propane = 44.10 g/mol

Molecular weight of air = 28.97 g/mol

Specific Gravity = 44.10 g/mol / 28.97 g/mol = 1.52

A propane leak is more dangerous than a methane leak because propane is heavier than air, so it sinks and can collect in low-lying areas such as basements and crawl spaces, where it can be ignited by a spark or flame. Methane, on the other hand, is lighter than air and tends to rise, making it less likely to accumulate in dangerous concentrations. Additionally, propane is more explosive than methane, so a propane leak can result in a larger and more destructive explosion.

To learn more about  specific gravity here:

https://brainly.com/question/9100428

#SPJ4

the complete question is :

Estimate the methane and propane-specific gravities (gas). 16.04 and 44.10 molecular weights respectively. (In commercial natural gas and propane, the main components are methane and propane; minor amounts of other compounds may be disregarded for this issue.) A propane leak or a methane leak, which is more hazardous? why?

a separation process that depends on differing abilities of substances to form gases is called .

Answers

A separation process that depends on differing abilities of substances to form gases is called Distillation.

Distillation is a common method used to separate and purify liquids based on their different boiling points. The process involves heating a mixture of liquids to a temperature where one liquid will evaporate and form a vapor, while the other liquids will remain in a liquid state. The vapor is then condensed back into a liquid form and collected, which is then called the distillate. The distillate will be the liquid with the lowest boiling point of all the components in the mixture. This process can be repeated for different boiling point ranges and those multiple distillates will be different components of the original mixture.

Learn more about mixture here:

https://brainly.com/question/24898889

#SPJ4

what mass of percipiate will from 25 ml of 1.5 molar copper ii sulfate sol reacts with 35 ml .75 potassium hydroxide

Answers

The mass of precipitate will from when 25 ml of 1.5 M copper(II)
sulfate solution reacts with the 35 ml 0.75 M potassium hydroxide is 2.53 g.

The balanced chemical equation is :

CuSO₄(aq)   +  2KOH(aq)   ----->   K₂SO₄(aq)   +  Cu(OH)₂(s)

The moles of CuSO₄ = 1.5 × 0.025

                                    = 0.037 mol

The moles of KOH = 0.75 × 0.035

                               = 0.026 mol

The KOH is the limiting reactant.

1 mole of the KOH produces the 1 mole of Cu(OH)₂

Moles of Cu(OH)₂ = 0.026 mol

The mass of Cu(OH)₂ = moles × molar mass

                                    = 0.026 × 97.5

                                    = 2.53 g

To learn more about moles here

https://brainly.com/question/26416088

#SPJ4

Bromine is found in group 17 and period 4. What does this tell you?
A. It has 7 valence electrons and 4 electron shells.
B. It has 17 valence electrons and 4 electron shells.
C. It has 4 valence electrons and 7 electron shells.

Answers

Answer:

A

Explanation:

it has 7 valence electrons and 4 electron shells.

Part (a)



The number of protons of bromine is 35.

The number is the atomic number of bromine and is normally shown as a superscript to the left of the elemental symbol in the periodic table.



Part (b)



For a neutral bromine atom, the number of electrons is 35 as well.

The number matches the atomic number in part (a).



Part (c)



The number of valence electrons of bromine is 7.

The number is the group number i.e. bromine is in group 7 of elements in the periodic table.



Part (d)



The number of electron shells of bromine is 4.

The number is the period number i.e. bromine is in the 4th period (row) of the periodic table.

Suppose you had four colors of modeling clay. What steps could you take to make a model of the colorful rock found on Crete? Describe the forces you would use in the process

Answers

It is crucial to remember that the finished output will be a model rather than an exact reproduction of the rock. The final sculpture will be an artistic depiction of the rock utilising the colours of clay you have on hand.

You would need to follow these procedures to create a replica of the vibrant rock seen in Crete using modelling clay: The modelling clay should be divided into four equal pieces, each of which should be coloured differently. Each colourful piece of clay should be rolled and flattened into a thin sheet using your hands. As desired, mix the colours together. To mould and shape the layered clay into the desired rock shape, use little pressure. On the rock's surface, use a tool to add textures and features. Physical force, such as pressing and sculpting the clay with your hands and tools, and cohesive forces between the clay particles are the major forces employed in this procedure.

learn more about rock here:

https://brainly.com/question/19930528

#SPJ4

methyl isocyanate reacts with strong acids, such as sulfuric acid, to form a cation. for protonation on , which resonance contributor is most important?

Answers

The resonance contributor that is most important for protonation in methyl isocyanate is the one in which the nitrogen atom is double-bonded to the carbon atom, and has a formal positive charge, this is called a carbocation or a carbenium ion.

This resonance contributor is considered the most important because it shows the nitrogen atom with the greatest electron density, making it more susceptible to protonation.

In the reaction of methyl isocyanate with strong acids, such as sulfuric acid, the protonation occurs on the nitrogen atom of the molecule. The protonation process is determined by the relative acidity of the nitrogen atom and its electron-withdrawing groups, and thus the resonance contributor that is most important for the protonation is the one that shows the nitrogen atom with the greatest electron density.

Learn more about Resonance here: https://brainly.com/question/29547999

#SPJ4

calculate the molarity of a solution by dissolving 10.0 g of al(no 3 )3 in enough water to make 250.0 ml of solution.

Answers

The molarity of the solution by dissolving the 10.0 g of Al(NO₃)₃ in the enough water to make 250.0 ml of solution is 0.184 M.

The mass of the  Al(NO₃)₃ = 10 g

The molar mass of Al(NO₃)₃ = 212.9 g/mol

The number of moles = mass / molar mass

                                     = 10 / 212.9

                                     = 0.046 mol

The volume of the solution = 250 mL = 0.250 L

The molarity expression is :

Molarity = moles / volumes in L

Molarity = 0.046 / 0.250

Molarity = 0.184 M

Thus, the molarity of the Al(NO₃)₃ solution is 0.184 M  with the volume of  the 250 mL.

To learn more about molarity here

https://brainly.com/question/8732513

#SPJ4

What is the original concentration of a Sulfuric Acid Solution with a pOH of 12. 43??

Answers

The original concentration of the sulfuric acid solution is  0.0044

To find the original concentration of a sulfuric acid solution with a pOH of 12.43, you would need to use the relationship between the acidity of a solution and its pH. The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration (pH = -log[H+]). The pOH of a solution is defined as the negative logarithm of the hydroxide ion concentration (pOH = -log[OH-]). Since the pH and pOH of a solution are related by the equation:

pH + pOH = 14

Given the pOH of 12.43, then you can calculate the pH as :

pH = 14 - pOH

pH = 14 - 12.43 = 1.57

The original concentration of the sulfuric acid solution is 10^(-pH)

[H+] = 10^(-1.57) = 0.0044.

Learn more about acid here:

https://brainly.com/question/30086613

#SPJ4

a solution of formic acid (hcooh) has a ph of 2.29. how many grams of formic acid are there in 100.0 ml of solution?

Answers

There are 593.4 grams of formic acid in 100.0 mL of a solution of formic acid (HCOOH) that has a pH of 2.29.

To calculate the grams of formic acid in 100.0 mL of solution, three procedures are performed:

Calculation of the molar concentration of the formic acid solutionCalculation of the number of moles in the 100 ml of formic acid solutionConversion from moles to grams

Calculation of the molar concentration of the formic acid solution

To calculate the concentration of a solution as a function of pH, the following formula is used:

pH = - log [H3O+]

where [H3O+] is eliminated

2.29 = - log [H3O+]

log[H3O+] = -2.29

10-2.29 = [H3O+]

[H3O+] = 129M

Calculation of the number of moles in the 100 ml of formic acid solution

Then the number of moles in 100 ml of solution is calculated.

If in 1000 ml of solution there are 129 moles of formic acid

So in 100 ml of solution there are x moles of formic acid

X mole of formic acid = 100 ml x 129 moles / 1000 ml

X moles of formic acid = 12.9

Conversion from moles to grams

Then with the molecular weight of formic acid (46 g/mol) the grams of this compound in 100 ml of solution are calculated.

If in 1 mole of formic acid there are 46 grams of compound

So in 12.9 moles there are x grams of compound

X g of formic acid = 12.9 mol x 46 g / 1 mol

X g of formic acid = 593.4

Therefore, in 100.0 mL of solution there are 593.4 g of formic acid.

Learn more about calculating grams of formic acid in a solution at https://brainly.com/question/28204278

#SPJ4

which compound can provide the energy for chemosynthesis?(1 point) responses water water hydrogen sulfide hydrogen sulfide carbon dioxide carbon dioxide oxygen

Answers

The compound can provide the energy for chemosynthesis is the carbon dioxide.

The Chemosynthesis is the process in which the certain microbes will create the energy by mediating the chemical reactions. so that  the animals that live around the hydrothermal vents will make their living from the chemicals that are coming out of the seafloor. The energy stored in the bundles or the packets is known as the photon. The compound can provide the energy for chemosynthesis is the carbon dioxide and the photons.

Thus, The compound carbon dioxide can provide the energy for chemosynthesis. Therefore the correct , option C is correct.

To learn more about chemosynthesis here

https://brainly.com/question/20848380

#SPJ4

How do the funtions of organelles help keep a cell functioning and could it do its function just as wellif an organell was missing or damage ?

Answers

The functions of organelles help to keep a cell functioning because they generate different products such as proteins in mitochondria required to maintain cell homeostasis.

What are the functions of cell organelles?

Cell organelles function as specialized structures within our cells that have specific functions. They are like tiny organs that work together to keep our cells functioning properly such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, and peroxisomes.

Therefore, with this data, we can see that organelles aid in the upkeep of a cell by creating various substances, like the proteins made in mitochondria, that are vital for cell equilibrium.

Learn more about organelles in the cell here:

https://brainly.com/question/1835558

#SPJ1

Other Questions
construct a thesis statement that combines your event, the technology, the societal or cultural influences, and choice of general education interdisciplinary lens. your thesis statement should clearly and concisely state the relationships between your event, technology, societal or cultural differences, and lens. it acts as a hypothesis proposing how these elements will work together during your critical analysis. A cat named Bucket lives in my house. He is named after the device used to rescue him from a near death encounter with an apartment manager. Saved by a painter with a large, empty paint bucket, he came into our home like a marauding invader, taking every heart by storm, battling back our doubts, and snuggling into his bucket for naps during the first week with us. Because of his quirky beginnings, he developed personality traits that continue to annoy, charm, and entertain us. He chatters constantly, telling us of his day when we return home. He plays with shadows on the wall. He dashes from one end of the house to another with no apparent target or purpose. Watching Bucket is better than watching television most nights. Bucket's effect on our lives is not unique. It turns out cats profoundly improve their owners' lives. For that reason alone, cats should surely be considered the best pet on Earth.First, cat lovers are smarter than ardent fans of dogs. A British study found that people who own cats are more likely to have college degrees. While the study was careful to point out that the cats aren't causing people to be smarter, it does suggest cats are the smart choice for those who want to appear smart. The theory is that because smarter people tend to work longer they may choose cats as pets more often. As cats are known to be more independent, this choice seems wise.Second, cats are better for the environment. Cats are more likely to eat fish than beef or corn. Fish has a lower carbon footprintor impact on the environmentthan beef and corn which dominate a dog's diet. The resources needed to care for cats are much less than those needed for dogs. Cats eat less than dogs do, and so are also more economical in terms of costs to their owners.Third, cats offer great emotional benefits. They provide companionship, often asking for attention or affection that is then returned to their human. Humans tend to respond to a cat's purring with affection, petting, and comforting words. In return, humans feel an increased sense of calm and peacefulness. Cats also have been shown to help people who have endured a painful loss to feel better sooner. It's thought that having something to talk to that will only listen and not judge helps people cope with loss.With all these benefits, it's hard to understand the people who report a strong dislike of cats. Sure they can be aloof. They do seem to want life on their own terms. But the benefits they provide far outweigh their quirks. Bucket, for example, will always be a special, wonderful kitty, despite his tendencies to knock things off of high places, turn over food bowls, and bite the dog's face. Cats are simply the best.What is a key difference in how the authors develop these two essays? (1 point) aOne uses personal information and details, and the other does not. bOne uses details of scientific studies, and the other does not. cOne uses a problem and solution organization, and the other does not. dOne clearly states a thesis, while the other does not. How many pieces 1 4/5 in. long can be cut from 22 metal rods each 21 in. long? Disregard the waste. Joan decided to go for a walk, st arting from her house. The diagram below shows the m easurement between places on t he route where he walks. what wil I be his Position when he is at c ar?* (GIVING BRAINLIST TO THE CORRECT ANSWER) a marble is selected at random 3 times from a bag of 2 green marbles, 2 blue marbles, and 2 red marbles. the selected marble is replaced each time. what is the probability that at least 1 of the selections is blue? Why were the Boy Scouts and Girls Scouts founded?A. To train sportsmenB. To serve as a way for youths to join the armyC. To teach young people to understand nature and be more activeD. To act as a halfway house for released prisoners paying property taxes is an example of a/an . group of answer choices conformity cost enterprise cost transaction cost overhead cost PLEASE SOMEONE HELP ME!! I need this turned in by 10:00 Lewis needed to find the difference in lengths between the hypotenuse and the longest leg of this triangle. His work is shown below.Triangle A B C. Side B C is 16 and side A C is 12. Hypotenuse A B is labeled c. Question 11Valentine's Day, once a pagan feast, is now celebrated as a day of love.O appositiveprepositionalO gerundO infinitive*need understanding A set of points is shown on the graph.Which of the following equations is the best model for a line of fit for the data?Oy-2/3x+7Oy=-2/3x+7Oy=1/3x+7Oy=-1/3x+7 2: nes of Best Fit Terms of Uno What is the equation of this trend line? Enter your answers by filling in the boxes. K=J+ Vanable K 36 201284 CERRA 132. 0 O 4 6 8 10 Variable J 12 14 16 1 2 3 4 5 Next K12 6 what type of muscle cannot be controlled voluntarily? Think about a time when you had to leave something behind. Maybe it was a friend, a home, or simply an object. Write a minimum four-stanza poem (five lines per stanza, for a total of twenty lines) that expresses the "leaving" of something personal. Be sure to use each of the following poetic devices: one simile one example of alliteration one metaphor one hyperbole one symbol one example of personification you are preparing a message to a group of potential stockholders about the history of your company. which of the following organizing triads would you use? a. problem action result (par) b. chronological (ppf) c. problem cause solution (pcs) d. importance (most, somewhat, least) A 140.0 g sample of water at 20.0 c is mixed with 100.0 g of a certain metal at 95.0 c. after thermal equilibrium was established, the temperature of the mixture is 24.6 c. what is the specific heat capacity of the metal? Given that x, y, and z are real numbers that satisfy:and that x+y+z = \frac{m}{\sqrt{n}}, where m and n are positive integers and n is not divisible by the square of any prime, find m+n. let f be a function defined on the closed interval -5 find all values x at which f has a relative maximum. justify your answer which nursing intervention is classified under complex physiological domain according to the nursing interventions classification (nic) taxonomy? select all that apply. one, some, or all responses may be correct 1. Mis amigos ______ estudiando historia1. esta 2. estamos 3.estoy 4.estas 5.estan2. Ana Maria____ cocinando sopa1. estas 2.estamos 3.esta 4.estoy 5.estan3.Yo ___ bebiendo leche1. est 2.ests 3.estn 4.estamos 5.estoy4. T y tus amigos ___ cenando juntos1.est 2.ests 3.estn 4.estamos 5.estoy5. T ___ tomando el examen1.estn 2.est 3.estamos 4.ests 5.estoy6. Los estudiantes____ esperando el autobs1.estas 2.estamos 3.esta 4.estan 5.estoy7. Mi familia___ mirando la tele1.estan 2.esta 3.estoy 4.estas 5.estamos8. Yo___ escribiendo una carta1.esta 2.estan 3.estamos 4.estas 5.estoy