If 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, the concentration of the solution is 0.308M
How to calculate concentration?The concentration of a solution can be calculated using the following formula:
Molarity = no of moles ÷ volume (L)
However, the number of moles in 162.35g of Al(OH)3 must be calculated as follows:
Molar mass of Al(OH)3 = 78g/mol
no of moles = 162.35g ÷ 78mol
no of moles = 2.08mol
Molarity = 2.08mol ÷ 6.75L
Molarity = 0.308M
Therefore, if 162.35 g aluminum hydroxide are dissolved in 6750 mL of solution, the concentration of the solution is 0.308M.
Learn more about molarity at: https://brainly.com/question/2817451
Ferrous ammonium sulfate is what kind of test method.
A FAS-DPD titration is as simple as a test for total alkalinity or calcium hardness. A buffered DPD indicator powder is added to a water sample and reacts with chlorine to produce the pink color characteristic of the standard DPD test.
In which method ferric ammonium sulphate is used as an indicator?
Chemical analysis is the name of the method when ferric ammonium sulphate is used as the indicator. Basically, this method is used in the making of pharma elements. It is used in standardizing the formulation.
What is a DPD test?
The DPD test is used extensively in water treatment to determine the level of disinfectant present. In most cases, this is Free Chlorine but it can be used to measure other parameters ( oxidants ). It is a quick and relatively easy test which requires little background or skill to perform.
Learn more about Ferrous ammonium sulfate here: https://brainly.com/question/10834028
#SPJ2
Consider the following oxidation-reduction reaction: 2fe3+(aq) + 2hg(l) + 2cl−(aq) → 2fe2+(aq) + hg2cl2(s). indicate the oxidizing agent and the reducing agent.
Answer:
The reducing agent is Hg (mercury) and the oxidixing agent is Cl (chlorine)
Explanation:
first find the oxidation charges of each of the different ions. All elements that are alone have a charge of 0. As you compare the reactants and products we can see that the chargers of Hg and Cl have changed.
Hg went from a charge of 0 to a charge of +1
Cl went from a charge of 0 to a charge of -1
remember when a substance gains electrons it is reducing and when a substance is losing electrons it is oxidizing.
use the acryonm
OIL
Oxidizing Is Losing
RIG
Reducing Is Gaining
Which functional group is used in other functional groups?
Explanation:
a substituent or moiety in a molecule that causes the molecule's characteristic chemical reactions
The question is given in the image below
The solubility of a gas is 0.890 g/L at a pressure of 120 kPa. What is the solubility of the gas if the pressure is changed to 100 kPa, given that the temperature is held constant?
For the solubility of a gas is 0.890 g/L at a pressure of 120 kPa, the solubility of the gas, if the pressure is changed to 100 kPa is mathematically given as
c=0.741g/l
What is the solubility of the gas if the pressure is changed to 100 kPa, given that the temperature is held constant?Generally, the equation for the Pressure is mathematically given as
p=kc
Therefore
k=p/c
k = 120 /0.890
k=134.8
In conclusion, if p=100kpa
c=p/k
c=100/134.8
c=0.741g/l
Read more about mass
https://brainly.com/question/15959704
what are difference between graphite and diamond
Answer:
[tex]Diffrence \: between \: graphite \: and \: diamond [/tex]
[tex]\qquad \huge{\sf{point \: 1}} ➫[/tex]
⇛Graphite is soft in nature
⇛Diamond is hardest substance
[tex]\qquad \huge{\sf{point \: 2}} ➫[/tex]
⇛Graphite is a good conductor
⇛Diamond is not a conductor
[tex]\qquad \huge{\sf{point \: 3}} ➫[/tex]
⇛Graphite is grey in colour
⇛Diamond have transperant look
[tex]\qquad \huge{\sf{point \: 4}} ➫[/tex]
⇛Graphite have SP² hybridization
⇛Diamond have SP³ hybridization
[tex]\qquad \huge{\sf{point \: 5}} ➫[/tex]
⇛Graphite have layered structure
⇛Diamond have crystalline structure
Which of the following ionic compounds has a transition metal in it?
a. KOH
b. Cs2S
c. CuSO4
d. MgCl2
Answer:
Ca2s that is answers and CuSO4is
A metal (FW 311.8 g/mol) crystallizes into a face-centered cubic unit cell and has a radius of 2.86 Angstrom. What is the density of this metal in g/cm3
For a metal crystallizes into a face-centered cubic unit cell and has a radius of 2.86 Angstrom, the density is mathematically given as
d=3.31g/cm
What is the density of this metal in g/cm3Generally, the equation for the density is mathematically given as
[tex]d=\frac{2*m}{NA*a^3}\\\\Therefore\\\\d=\frac{2*295.6mol}{6.022*10^23*(6.67*10^{-3})}[/tex]
d=3.31g/cm
In conclusion, the density of this metal
d=3.31g/cm
Read more about density
https://brainly.com/question/14010194
what is density/ how does density work
help help
Answer:
Density is the measurement of how tightly a material is packed together. It is defined as the mass per unit volume. Density Formula: ρ = m/V, where ρ is the density, m is the mass of the object and V is the volume of the object.
Explanation:
Answer:
The mass per unit volume of a substance is called density of that substance.
Explanation:
So, How does it works ?
For example: Density of gold is 19300kg/cubic meter. It means that if there gold having volume of a cubic meter its mass will be 19300 kg... Density of plastics are less than that of density of metals... I.e. if we take plastic having volume 2 cubic meter & gold having volume 1 cubic meter we will find mass of gold is far more compared to that of plastic.. Thus, density refers how much tightly the molecules of a substance are bonded together.
If you have a closed container that has a pressure of 2.35atm, and a volume of 1.2L, and contains 76.33g Cl2, what is the resulting temperature in K
The resulting temperature of a closed container that has a pressure of 2.35atm, and a volume of 1.2L, and contains 76.33g Cl2 is 31.8K.
How to calculate temperature?The temperature of a given gas can be calculated by using the ideal gas law equation:
PV = nRT
Where;
P = pressure V = volume n = number of molesR = gas law constantT = temperatureno of moles of Cl2 = 76.33g ÷ 70.91g/mol = 1.08mol
2.35 × 1.2 = 1.08 × 0.0821 × T
2.82 = 0.088T
T = 2.82/0.088
T = 31.8K
Therefore, the resulting temperature of a closed container that has a pressure of 2.35atm, and a volume of 1.2L, and contains 76.33g Cl2 is 31.8K.
Learn more about temperature at: https://brainly.com/question/11464844
What can you conclude about the relationship between height and energy?
Answer:
Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.
Describe the change of state using kinetic theory
Explanation:
According to kinetic molecular theory,changes of the state of matter occur when energy is added or removed from a substance
According to the Kinetic-Molecular Theory, changes of the state of matter occur when energy is added or removed from a substance. The addition of energy makes particles move more, pushing them apart and weakening the bonds between them. Removing energy makes particle movement slow down, re-forming the bonds.
Elaborate on the method used to extinguish each class of fire
Why is it possible to compress a gas
Answer:
Gas can be compress easily than liquid or solid because, molecules are more spread in gas than solin or liquid.
Brainliest if this helps you. please
Can someone please help me? :(
Answer:
A. Each type of cell carries out a specific function for the organism.
Explanation:
[tex]hope[/tex] [tex]this[/tex] [tex]helps![/tex] [tex]:)[/tex]
What is the equilibrium constant for the reaction at 644 K ?
What is a trade-off?
Don't mind the highlighted yellow circle
Answer:
a new scientific discovery that benefits the environment
Select all of the following which are Nitrogenous bases that make up DNA:
a)Glutamine
b)Thymine
c)Adenine
d)Thyrine
e)Guanine
f)Cytosine
Answer:
adenine (A, green), thymine (T, red), cytosine (C, orange), and guanine (G, blue).
Explanation:
The nitrogen bases in a DNA molecule are adenine, guanine, cytosine, and thymine. Adenine and guanine belong to a class of compounds called purines, and cytosine and thymine belong to a class of compounds called pyrimidines. In a DNA molecule, the two strands are connecting by hydrogen bonds between the nitrogen bases of each strand. According to the base-pairing rule, the purine adenine always pairs with the pyrimidine thymine, and the purine guanine always pairs with the pyrimidine cytosine...
The attraction forces between mercury atoms in liquid mercury are stronger than the intermolecular forces between water molecules. which of the following is most likely true about mercury? it has a higher surface tension than does water. it exhibits greater capillary action than does water. it is very soluble in water.
The attraction forces between mercury atoms in liquid mercury are stronger than the intermolecular forces between water molecules because it has a higher surface tension than does water.
What is surface tension?Surface tension is the propoerty of the surface of liquids by which they will shrink into the minimum possible surface area.
Surface tension of the liquid mercury is greater than the surface tension of water means cohesive attraction force between the molecules of mercury is greater than water molecules.
Hence option (A) is correct.
To know more about surface tension, visit the below link:
https://brainly.com/question/11348644
Answer:
It has a higher surface tension than does water.
Explanation:
got it right on edge on 12-15-22
What is the molarity of NaCl when 5.0 moles of NaCl is dissolved in 2.0 L solution
Answer:
Molarity having mol/L that is moles of solute in per liters of solution.
mark as Brainliest please
Explanation:
substituted and expected value in the above education molarity equal to 0.5 mole by 2.0
help me with this pleaseeeeeee
Magnesium oxide is an ionic compound with a very high melting point and which requires a large amount of energy for melting.
What are ionic compounds?Ionic compounds are compounds which are formed between oppositely charged ions which are held together by electrostatic forces of attraction between the oppositely charged ions.
Ionic compounds are formed when metal atoms donate electrons to non-metals atoms to form ions.
Magnesium oxide is an ionic compound.
The nature of bonding is ionic bonding.
It has a crystalline lattice structure.
The forces of attraction is electrostatic forces of attraction.
It has a high melting point of 2,852 °C, and thus requires a large amount of energy go melting to occur.
Therefore, magnesium oxide is an ionic compound which requires a large amount of energy for melting.
Learn more about ionic compounds at: https://brainly.com/question/11638999
Sodium combines with water to produce sodium hydroxide and hydrogen gas. which word equation represents this violent reaction? sodium hydroxide water right arrow. sodium hydrogen sodium water right arrow. sodium hydroxide hydrogen sodium hydrogen right arrow. sodium hydroxide water sodium sodium hydroxide right arrow. water hydrogen
Answer:
B.) sodium water right arrow. sodium hydroxide hydrogen
Explanation:
Reactants are listed before the arrow and products are listed after the arrow. This symbolizes the reactants turning into the products.
Reactants --> Products
Reactants are the molecules which react with each other to make new molecules. Since sodium and water are being combined, they are the starting molecules. Products are the molecules made after a reaction occurs. Sodium hydroxide and hydrogen gas are produced, making them the ending molecules. The balanced chemical equation is:
2 Na⁺ (s) + 2 H₂O (l) --> 2 NaOH (s) + H₂ (g)
7.25 moles of air are pumped into a car tire. At 80°C, the pressure inside the tire is 506.625
kPa. What is the volume of the tire?
Why is innate immunity referred to as nonspecific?
because it provides a built-in mechanism of defense that does not require "training"
because it is a form of defense found in all animal species
because it is a form of defense that functions in all human body systems
because it provides defense against a wide range of pathogens
Answer:
c
Explanation:
The innate immune system is the body's first line of defense against germs entering the body. It responds in the same way to all germs and foreign substances, which is why it is sometimes referred to as the "nonspecific" immune system
What is the molarity of a 250. mL H, SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution?
F) 0.800M
G)1.25M
H)125M
J)500. M
The molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.
How to calculate molarity?The molarity of a solution can be calculated using the following expression:
CaVa = CbVb
Where;
Ca = concentration of acidCb = concentration of baseVa = volume of acidVb = volume of baseIn this question;
Ca = ?Va = 250mLCb = 10MVb = 20mLCa × 250 = 10 × 20
250Ca = 200
Ca = 200/250
Ca = 0.8M
Therefore, the molarity of a 250. mL H2SO4 solution that was made from a 20.0 mL of a 10.0 M stock solution is 0.8M.
Learn more about molarity at: https://brainly.com/question/2817451
The state of matter represented on the right (letter D) has the
highest energy. Of the four choices shown, which is plasma?
B. B.
A. A
D. D
С. С
Answer:
A is the answer.
Explanation:
gorgeousness
polease help 20pts
chemistry redox
Answer:
A is mg because it is losing 2 electrons
B is N2
C Mg as oxidation is lose of electrons
D is N2 as reduction is gain of electrons
Explanation:
you can easily remember as OIL RIG in term of electrons as Oxidation is Lost of electrons. Reduction is Gain of electrons.
The weak ionization constant (Ka)
for HF is equal to:
[H3O][F]
[HFJ[H20]
[HF]
[F-][H30+]
Please help
Answer:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
Explanation:
Write the reaction of HF (a weak acid) with water:
[tex]\displaystyle \text{HF}_\text{(aq)} + \text{H$_2$O}_\text{($\ell$)} \rightleftharpoons \text{H$_3$O}^+_\text{(aq)} + \text{F}^-_\text{(aq)}[/tex]
Recall that the equilibrium constant expression for an equilibrium reaction is the product of the concentration of the products over the product of the concentration of the reactants raised to their respective coefficients.
The equilibrium constant expression for this equation will hence be:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
Note that pure solids and liquids are not included in the equilibrium expression.
In conclusion:
[tex]\displaystyle K_a = \frac{[\text{H$_3$O}^+][\text{F}^-]}{[\text{HF}]}[/tex]
Uranium-235 has a half-life of 713 million years. Would uranium-235 or carbon-14 be more useful for dating a fossil from Precambrian time? please help im lost on this and its due tomorrow!
Uranium-235 which has a half-life of 713 million years will best suited in dating a fossil from Precambrian time.
What is a Fossil?Thi8s is defined as a trace of an animal or plant of a past geologic age that has been preserved in Earth's crust.
The Precambrian time occurred around 4.6 billions years ago and Uranium-235 which having a half-life of 713 million years means it's more useful when compared to carbon-14 which has a half life of 5,370 years.
Read more about Fossil here https://brainly.com/question/11829803
What is the mode of action of sulfonamides?
inhibition of protein synthesis
inhibition of cell wall synthesis
disruption of folic acid synthesis
disruption of membrane structure
Answer:
b is the correct answer inhibition of cell wall
Hey there!
Sulfanilamide is the classification of the antibiotics that can target the bacteria that’s causing infections.
But the action of the mode of sulfanilamide is: binding of a specific enzyme which simply translates to inhibition of the cell wall
Thus, your answer is: inhibition of cell wall synthesis (Option B.)
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)