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CGP EDU Academic Team
Published on: August 14, 2026
For the following reaction, the equilibrium constant K c at 298 K is 1.6 x 10 17
Fe 2+ (aq) + S 2- (aq) 
FeS(s)
When equal volumes of 0.06 M Fe 2+ (aq) and 0.2 M S 2- (aq) solutions are mixed, the equilibrium concentration of Fe 2+ (aq) is found to be Y x 10 -17 M. The value of Y is..........
Text Solution
Verified by ExpertsThe correct answer is:
8.93
(8.93)
Fe 2+ (aq)+ S 2- (aq) 
FeS(s) K c =1.6x10 17
Initial 0.06 M 0.2 M
After mixing 0.03 M 0.1 M
? 0.07M
or
or 8.93x10 -17 =Yx10 -17
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