[DHNWAC1999]

What is the effects of Adding a small quantity of nitric acid to the Chromium ion and hydroxide ion which form Cr(OH)₄

a)The acid reduces the concentration of hydroxide so the system would no longer be at equilibrium and the forward reaction rate would increase until a new equilibrium is reached. K does not change.
B)The acid reacts with the hydroxide also the system is no longer at equilibrium and the reverse reaction rate would increase until a new equilibrium is reached. K does not change.
c)Nitric acid doesn't appear in the reaction equation so there is no change.
d)The nitric acid acts as a catalyst and the reaction rate increases in both directions.

{MOD Edit: title to reflect content}

[Arkcon]

Hi there, I split this off from a question that wasn't pertinent.  But there's no question here.  Maybe you'd like to ask it in another way?