AP Chemistry : Chemical Equilibrium

Study concepts, example questions & explanations for AP Chemistry

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Example Questions

Example Question #3 : Calculating The Equilibrium Concentrations

What is the equilibrium concentration for A- in the following reaction if the starting concentration of HA is 0.30 M?

          

Possible Answers:

1.5 x 10-3 M

 3.9 x 10-5 M

2.1 M

2.1 x 10-3 M

1.5 x 10-4 M

Correct answer:

 3.9 x 10-5 M

Explanation:

05

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