Chemistry Homework Help

Browse Homework Solutions

282 solutions

Equilibrium Expressions

Q. The equilibrium constant is 5.2 x 10-3 for the reaction Br2(g) <==> 2 Br(g) at 450K. Calculate the Kc and the Kp for the reaction 2 Br (g) <==> Br2(g) at that same temperature?

Solved • May 6, 2020

Equilibrium Expressions

Q. At 431 K, 18.33 grams of carbon are heated with 37.12 grams of water in a 1.000 L sealed vat. At equilibrium, there are 31.395 grams of water, 1.023 grams of carbon monoxide, and 0.071 grams of hydrogen gas. What is the equilibrium constant for the reaction at this temperature? Report your answer to three significant figures in scientific notation.

Solved • Apr 29, 2020

Equilibrium Expressions

Q. Can you help me with this question?

Solved • Apr 23, 2020

Equilibrium Expressions

Q. Na(I) + ½ O2 (g) ⇌ NaO (g) K1 = 2x105 Na2O2 (s) + Na (l) ⇌ NaO (g) + Na2O (s) K2 = 2x10-8 2 Na (l) + ½ O2 (g) ⇌ Na2O (s) K3 = 2x1025 Determine the value for the equilibrium constant for the following reaction Na2O2 (s) ⇌ 2 NaO (g)

Solved • Apr 9, 2020

Equilibrium Expressions

Q. The equilibrium constant, Kp, for the following reaction is 0.365 at 1150 K. 2SO2(g) + O2(g) ⇌ 2SO3(g) If ΔH° for this reaction is -198 kJ, what is the value of Kp at 1230 K?

Solved • Mar 30, 2020

Equilibrium Expressions

Q. The equilibrium constant, Kp, for the following reaction is 2.74 at 1150 K. 2SO3(g) ⇌ 2SO2(g) + O2(g) If ΔH° for this reaction is 198 kJ, what is the value of Kp at 1270 K?

Solved • Mar 30, 2020

Equilibrium Expressions

Q. Consider the reaction shown. Using your knowledge of relative acid-base strengths and equilibrium, determine what you can about the size of K c for the reaction. H3SbO4(aq) + HTeO4-(aq) <=> H2SbO4-(aq) + H2TeO4(aq) Answer: Kc < 1 I saw the work on how to get this answer from a girl who asked, but I'm confused on how you know that you compare H2TeO4 with H3SbO4 instead of HTeO4- with H2SbO4-

Solved • Mar 27, 2020