Chemistry College

Consider the reaction.

A(aq)↽−−⇀2B(aq)=4.87×10−6 at 500 K

If a 2.00 M sample of A is heated to 500 K, what is the concentration of B at equilibrium?

Consider The Reaction.A(aq)2B(aq)=4.87106 At 500 KIf A 2.00 M Sample Of A Is Heated To 500 K, What Is

Answers

Answer 1

Note the signs of equilibrium:-

Reaction don't procede forward or backwardConcentration of products and reactants remains same .

So

if

Concentration of A is 2M then concentration of B should be same .

So equilibrium constant K is 1

[tex]\\ \rm\rightarrowtail K=\dfrac{[Products]^a}{[Reactants]^b}[/tex]

So

[B]=[A]^2[B]=2^2[B]=4M
Answer 2

The equilibrium constant K is the ratio of product of molar concentrations of products to the product of molar concentrations of reactants. The concentration of B in the given reaction is 0.0031 M.

What is rate of a reaction?

Rate of a reaction is the rate of decrease in the concentration of the reactants or rate of increase in the concentration of products.

Consider the simple reaction A ⇄2B, the rate of the reaction can be written as follows:

rate = K [A]

Where, k is the equilibrium constant or rate constant and [A] is the concentration of reactant A. If A have any coefficients, then the coefficient number is written as power of the concentration term.

The equilibrium constant K = [B]²/ [A] it is given 4.87 ×10⁻⁶ . Thus concentration of B can be calculated as follows:

[B]² = K [A]

       = (4.87 ×10⁻⁶)×2.00 M

       =9×10⁻⁶

  [B] = 0.0031 M

Hence, the concentration of the product B is 0.0031 M.

To learn more about rate of reaction, refer the link below:

https://brainly.com/question/8592296

#SPJ2

                                           

Related Questions

What is the measurement of 2 polar bears

Answers

Answer:

An adult male is between 2.4-3m (8-10 feet) in size and weighs between 350-680kg (775-1500lbs). Females are slightly smaller at around 1.8-2.4m (6-8 feet) and weigh between 150-250kg (330-550lbs).

How can we increase the surface area of reactants?
add a catalyst
O place them in a flame
dissolve them in water
o add more particles to the solution

Answers

Answer:

O place them in a flame dissolve them in water o add more particles to the solution.

Which statements describe the motion of the object represented by the graph? Select three options.

The object is moving away from the origin.
The object is moving towards the origin.
The object started at the origin.
The object started at 2 meters.
The object is traveling at a constant velocity.

Answers

Answer:

The object is moving away from the origin.

Explanation:

Answer:

The object is moving away from the origin

The object started at 2 meters.

The object is traveling at a constant velocity.

Explanation:

The line on the graph is moving in the upward direction which means the farther right on the graph you go the farther up the line is. The line also has a constant slope which indicates that the object is moving at a constant rate. and if you look at x=0 the y=2 so therefor the object started at 2 meters.

Before tackling this problem, be sure you know how to find the antilog of a number using a scientific calculator.
A solution has a pH of 5.4. Write the formula you will use to calculate the [H+] and then show all your work leading to the determination of [H+].

Answers

Question:-

A solution has a pH of 5.4, the determination of [H+].

Given :- pH:- 5.4 pH = - log[H+]

To find :- concentration of H+

Answer:- Antilog(-5.4) or 4× 10-⁶

Explanation:- Formula:- pH = -log H+

Take negative to other side

-pH = log H+

multiple Antilog on both side

(Antilog and log cancel each other )

Antilog (-pH) = [ H+ ]

New Formula :- Antilog (-pH) = [+H]

Now put the values of pH in new formula

Antilog (-5.4) = [+H]

we can write -5.4 as (-6+0.6) just to solve Antilog

Antilog ( -6+0.6 ) = [+H]

Antilog (-6) × Antilog (0.6) = [+H]

[tex]Antilog (-6) = {10}^{ - 6} , \\ Antilog (0.6) = 4 [/tex]

put the value in equation

[tex] {10}^{ - 6} \times 4 = [H+] \\ 4 \times {10}^{ - 6} = [H+][/tex]

Balance the equation ​

Answers

Sorry but I can’t help you. The image is blurry and therefore the supposition is incorrect . But 12/4 equals 3

A chemist adds 36.0 g of sodium chloride to 200 g of water at STP and all of the sodium chloride dissolves. What is the solute in this scenario?

Answers

Answer:

The answer is the Sodium Chloride.

Explanation:

A solute is the minor component in a solution, dissolved in the solvent, and the sodium is being dissolved in water ( or the solvent).

A chemist adds 36.0 g of sodium chloride to 200 g of water at STP and all of the sodium chloride dissolves, in this scenario sodium chloride is solute.

What are solute?

Those substance which are present in the solution relatively in less amount is known as solute.

In the question given that 36 grams of sodium chloride is added in the 200 grams of water. From this it is clear that sodium chloride is a solute and water is a solvent, which additionally makes a solution.

Hence, sodium chloride is a solute.

To know more about solute, visit the below link:
https://brainly.com/question/16757650

Volume of distillate = 300 ml
Volume of Ethanol in the mixture = 450 ml
% Recovery =

Answers

Based on the distillation data provided, the percent recovery of ethanol is 66.7%

What is distillation?

Distillation is a separation technique which is used to separate two miscible liquids based on differences in their boiling points.

At the boiling point of the first liquid, it distills over and is obtained by condensation.

The liquid obtained is known as distillate.

In the distillation of ethanol, the percent recovery is calculated as follows:

Percent recovery = (volume of distillate/volume of ethanol in mixture) × 100%

From the data given:

Volume of distillate = 300 mlVolume of Ethanol in the mixture = 450 ml

Percent Recovery = (300/450) × 100%

Percent recovery = 66.7%

Therefore, the percent recovery of ethanol is 66.7%.

Learn more about about distillation at: https://brainly.com/question/24553469

How many grams of aluminum oxide will you need to start with in order to make 6500 g of aluminum hydroxide?

Answers

Answer:

Explanation:

2Al(s) + 3 2 O2(g) → Al2O3(s) And given the stoichiometry ...and EXCESS dioxygen gas...we would get 6.25⋅ mol of alumina. the which represents a mass... ...6.25 ⋅ mol ×101.96 ⋅ g ⋅ mol−1 molar mass of alumina ≡ 637.25 ⋅ g.

Answer:

56.7 grams of aluminum oxide (AI²O³) are produced.Need a fast expert's response.

what would happen if you put vegetable oil and ice cubes into a beaker together? what would happen if you left it on the counter overnight?

Answers

Oil is hydrophobic, which means that it repels water. The ice cube will immediately begin to melt as soon as it is placed in the oil. Because oil is hydrophobic, it will not mix with the water.

If you leave the beaker overnight, you'll notice that the water sinks to the bottom and the oil floats to the top. This is because water has a higher density than oil, causing it to sink.

Hope this helps!
Other Questions
The researcher had to throw out some surveys because theparticipants didn't complete them in full. What happenedto the power? Why? The measures of heights (in inches) of a class of students are shown. 60, 60,54, 62, 62, 57,58, 65, 54,67, 63,57, 62, 54, 72, 66, 54, 69, 55, 61 Find the mean, median, mode, range, and standard deviation of the heights.b. A new student who is 7 feet tall joins your class. How would you expect this students height to affect the measures in part (a)? How and why did the USA win World War 2 Pretend that you are the administrative assistant for the marketing department of ABC Technologies. You are coordinating travel for an upcoming meeting in another state. You need to ask the director of the Marketing Department who is going to the meeting, the dates they will be gone, and how many rental cars and hotel rooms they will need. Write an e-mail to the director asking for this information. Be sure to include the elements of an e-mailthe sender, recipient, date, subject, and message. (Make up the names and any other information, as needed.) The day before the drawing of a $600 million Powerball letter, you notice that a line of people waiting to buy their Powerball tickets is stretched outside the door of a nearby convenience store. Based on what you've learned, provide some perspective on why these people are doing this, and what would likely happen if you or one of these individuals happened to pick the right numbers. How would winning the Powerball alleviate stress and change a persons lifestyle? How do you believe it could create stress for a person? Evaluate the degree to which Third World countries were successful in their quest to end colonialism and establish new ways of serving their populations. Teachers are being trained to standardize the scores they give students essays. The results are shown in the tablesCalculate the MADs for the teachers scores. Did the teachers make progress in standardizing their scores?____,(Yes or No) The MAD before the training was ______(MAD for the top chart) and the MAD at the end of the training is _______,(MAD for bottom chart) so _______ (progress or no progress)was made toward standardizing test scores In the process of . DNA is used as a template for making another type of Nucleic acid? what is the cap of ia? my history question How the circulatory and respiratory systems work together to deliver oxygen to the bodys tissues Frank grows evergreen trees. He grew 535 trees forthe holiday season. In November he sold 215 treesand in December he sold 275.a. Write an expression. Then solve.b. Frank replanted the left over trees with theaddition of 650 more trees. How many trees willhe have for next season? please help I will give brainlyist to the first answer!!!How do taxes benefit children, families, and communitys? Whats 36 km=?m into a desmal If a given set of cash flows is expressed in nominal terms and discounted at the nominal rate, the resulting present value will be the same as if the cash flows were expressed in real terms and discounted at the ____ rate. Sandra bought 4 pounds of sweet potatoes for $5.36. What is the cost per pound of the sweet potatoes? A. $0.75 B. $1.34 C. $1.26 D. $9.36 3. In the formula F = kx , what does the minus sign indicate?It indicates that the restoring force is in the direction of the displacement.It indicates that the restoring force is in the direction opposite the displacement.It indicates that mechanical energy in the system decreases when a system undergoes oscillation.None of the abovePlease show all of your work. Imagine that we randomly select a day from the past 10 years The scores on a psychology exam were normally distributed with a mean of 52 and a standard deviation of 6. About what percentage of scores were less than 40? The blossoms danced in the summer breeze. Which stylistic technique is used in the sentence? A) simile B) metaphor C) rhyme D) personification What is the value of the discriminant for x2 + 5x = -7?