Chromate ions react according to the following equation, where the left side of the reaction is yellow and the right side is orange.

Question

Chromate ions react according to the following equation, where the left side of the reaction is yellow and the right side is orange.

CrO,2-+ 2H* 2 C0, - + H,0
A student adds sodium hydroxide (NaOH to the solution at equilibrium. In one to two sentences, describe and explain any changes to the solution that the student will observe. 3 sentences

Answer 1

The addition of sodium hydroxide will cause the chromate ions to react with the hydroxide ions to form a brown precipitate of chromium(III) hydroxide. This will result in a decrease in the concentration of chromate ions in the solution, shifting the equilibrium to the left. The solution will appear to become less orange and more yellow as the chromate ions are consumed in the formation of the precipitate.

Answer 2

So what is the real answer other posts say that it'll shift color to yellow. What changes to the solution will the student observe?

Answer 3

Chromate ions react according to the following equation, where the left side of the reaction is yellow and the right side is orange.

So what is the real answer other posts say that it'll shift color to yellow. What changes to the solution will the student observe?

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