Chemistry Practice Problems Equilibrium Expressions Practice Problems Solution: At a certain temperature, K c equals 1.4 × 10 2 fo...

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# Solution: At a certain temperature, K c equals 1.4 × 10 2 for the reaction:2 CO (g) + O 2 (g) ⇌ 2 CO 2 (g).If a 2.50-L flask contains 0.400 mol of CO 2 and 0.100 mol of O 2 at equilibrium, how many moles of CO are also present in the flask?        A) 0.169 mol           B) 0.028 mol                  C) 0.107 mol                              D) 0.0114 m

###### Problem

At a certain temperature, equals 1.4 × 10 2 for the reaction:

2 CO (g) + O (g) ⇌ 2 CO (g).

If a 2.50-L flask contains 0.400 mol of CO 2 and 0.100 mol of O 2 at equilibrium, how many moles of CO are also present in the flask?

A) 0.169 mol           B) 0.028 mol                  C) 0.107 mol                              D) 0.0114 m

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