Q.

If the concentration of OH- ions in the reaction FeOH3(s)  ⇌  Fe3+(aq)  +  3OH- is decreased to 14 times, then equilibrium concentration of Fe3+ will be increased to

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a

16 times

b

64 times

c

4 times

d

8 times

answer is B.

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Detailed Solution

KC = Fe3+  OH-3If OH- = 14 × OH-  initial, Then [Fe+3]= 64  Fe3+  initial to have  KC
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If the concentration of OH- ions in the reaction FeOH3(s)  ⇌  Fe3+(aq)  +  3OH- is decreased to 14 times, then equilibrium concentration of Fe3+ will be increased to