Question

What is the equilibrium constant for the reaction?

Answer 1

Answer: C. 20

Explanation: One equation for the equilibrium constant is $\frac{[Products]}{[Reactants]}$. The products are typically on the left side and the reactants on the right.

Given this and the values of each, we can easily plug this in. However, we must multiply the products instead of adding them.

$\frac{0.69M*0.98M}{0.034M} =19.888, or 20M$

19.888 can be easily rounded to 20, meaning that C is the best answer.

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