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242 solutions

Le Chatelier's Principle

Q. c. In which direction, if any, will the equilibrium shift if solution becomes basic? Explain.

Solved • Mar 4, 2020

Le Chatelier's Principle

Q. If nitric acid (HNO3) is added to this solution, will a color change be observed

Solved • Mar 3, 2020

Le Chatelier's Principle

Q. If HNO3 is added to this solution, would you expect to see more or less of the precipitate (CaC2O4) formed in the solution?

Solved • Mar 3, 2020

Le Chatelier's Principle

Q. The following diagrams (Figure 1) represent aqueous solutions of two monoprotic acids, HA (A = x or Y). The water molecules have been omitted for clarity. If you mix equal concentrations of HX and NaY, will the equilibrium HX(aq) + Y^-(aq) ⇌ HY(aq) + X^-(aq) lie mostly to the right (Kc> 1) or to the left (Kc< 1)?

Solved • Feb 23, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where Kc = 1.80x10^-4 and ΔH° = 92.7 kJ/mol at 298 K. NH4HS (s) ⇌ NH3 (g) + H2S (g) The production of NH3 (g) is favored by: Indicate True (T) of False (F) for each of the following: 1. increasing the temperature 2. decreasing the pressure (by changing the volume). 3. decreasing the volume 4. adding NH4HS 5. removing H2S

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where Kc = 154 and ΔH° = -16.1 kJ/mol at 298 K. 2 NO (g) + Br2 (g) ⇌ 2 NOBr (g) The production of NOBr (g) is favored by: Indicate True (T) of False (F) for each of the following: 1. decreasing the temperature 2. decreasing the pressure (by changing the volume). 3. decreasing the volume 4. removing NOBr 5. adding Br2.

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where Kc = 6.50x10^-3 and ΔH° = 16.1 kJ/mol at 298 K. 2 NOBr (g) ⇌ 2 NO (g) + Br2 (g) The production of NO (g) is favored by: Indicate True (T) of False (F) for each of the following: 1. increasing the temperature 2. increasing the pressure (by changing the volume). 3. increasing the volume 4. adding NOBr 5. removing Br2.

Solved • Feb 19, 2020