Chemistry Homework Help

24/7 Chemistry Homework Help

Get step-by-step solutions from expert tutors.

How it works?

Ask a question

Type, take a picture, or paste your question with all necessary details to ensure high-quality responses.

Get an answer in less than 24hrs

Once our tutors receive the question, they'll begin. You'll get an email once the solution is ready.

Get Notified

We will send you email and text notification to let you know when your question is answered.

Browse Homework Solutions

258 solutions

Equilibrium Expressions

Q. The following pictures represent the equilibrium mixtures of five different chemical reactions. All the reactions proceed according to the general balanced chemical reaction A + B ⇌ AB Red spheres represent A atoms, blue spheres are B atoms, and red-blue clusters are AB molecules. Rank the reactions in order of increasing equilibrium constant. Rank the reactions from smallest to largest equilibrium constant To rank items as equivalent, overlap them.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. For a different reaction, Kc = 1.11, kf = 82.6 s^-1, and kr = 74.6 s^-1. Adding a catalyst increases the forward rate constant to 2.40x10^4s^-1. What is the new value of the reverse reaction constant, kr, after adding catalyst? Express your answer with the appropriate units. Include explicit multiplication within units, for example to enter M^-2 . s^-1 include . (multiplication dot) between each measurement.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. For a certain reaction, Kc = 8.23x10^10 and Kf = 145 M^-2 . s^-1. Calculate the value of the reverse rate constant, kr, given that the reverse reaction is of the same molecularity as the forward reaction. Express your answer with the appropriate units. Include explicit multiplication within units, for example to enter M^-2 . s^-1 include . (multiplication dot) between each measurement.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: CO(g) + Cl2(g) ⇌ COCl2(g) Carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 451 °C. At equilibrium, the concentrations were measured and the following results obtained: What is the equilibrium constant, Kp, of the reaction? Express your answer numerically.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. For the reaction 2CH4(g) ⇌C2H2(g)+3H2(g) Kc = 0.150 at 1610.°C. What is Kp for the reaction at this temperature? Express your answer numerically.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. A chemical reaction between X2 (red) and Y2 (blue) produces XY (red-blue). All species are in a gaseous state. The picture shown here represents the equilibrium mixture. Calculate the equilibrium constant for the balanced reaction between one mole of each reagent. Express your answer numerically to three significant figures.

Solved • Feb 15, 2020

Equilibrium Expressions

Q. Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: CO(g) + Cl2(g) ⇌ COCl2(g) Carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 471 °C. At equilibrium, the concentration were measured and the following results obtained: What is the equilibrium constant, Kp, of the reaction? Express your answer numerically.

Solved • Feb 15, 2020