using the chrom ate/dichromate reaction, to answer the following questions. 2CrO

Question

using the chrom ate/dichromate reaction, to answer the following questions. 2CrO42-(aq) + 2 H+ (aq)Cr20,2 (aq) + H2O (1) Note: This question will not be automatically graded It wll be sent to your instructor for review. value: 10.00 points If more acid is added to the reaction would the solution remain yellow or would it turn orange? value: 10.00 points Note: This question will not be automatically graded. It will be sent to your instructor for review. If more water is added to the reaction at equilibrium, would the solution be orange or yellow?

Explanation / Answer

The equilibrium reaction is

2CrO4-2 + 2H+ ------------> Cr2O7-2 +H2O

The cromate ion is yellow in color and dichromate is orange in color.

q1) when more acid is added , we are adding one of the reactant , so the equilibrium shifts to right side. Thus more of dichromate is formed .

Thus the solution turns orange.

Q2)When more water is added, we are adding the product, thus the equilibrium shifts to left side and more of reactant chromate is formed.

So the solution turns yellow.

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