The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion. 2 CrO 4 2− (aq) + 2 H 3 O + (aq) ⇄ CrO 7 2− (aq) + 3 H 2 O( ℓ ) (a) Explain this experimental observation in terms of Le Chatelier’s principle. (b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion. 2 CrO 4 2− (aq) + 2 H 3 O + (aq) ⇄ CrO 7 2− (aq) + 3 H 2 O( ℓ ) (a) Explain this experimental observation in terms of Le Chatelier’s principle. (b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion.
2 CrO42−(aq) + 2 H3O+(aq) ⇄ CrO72−(aq) + 3 H2O(ℓ)
(a) Explain this experimental observation in terms of Le Chatelier’s principle.
(b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
Write equilibrium constant expression for the following:Fe2O3 (s) + 3 H2 (l) ⇌ 2 Fe (s) + 3 H2O (g)
Which of the following is the equilibrium constant expression for the reaction?
2NO(g) + 02(g) → 2NO2(g)
Aqueous Ammonia Solution (with phenolphthalein)
NH3 (aq) + H2O (l) = NH4+1 (aq) + OH-1 (aq)
What happens to equilibrium by adding HCl to the solution?
The reactants are colorless and products are pink.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell