The equilibrium concentrations for the reaction: A + B = C are [A] = 0.01 M;
[B] + 0.02 M and [C] = 0.1 M.
What is the value of Keq?

0.330M (rounded to 2 sig. figs.)

Explanation:

        A      +      B   =       C  

       [A]            [B]          [C]

     0.01M      0.02M   0.010M

Kc = [C] / [A] + [B] ; [A] = 0.01M, [B] = 0.02M; [C] = 0.10M        

Kc = [C] / [A] + [B] = [0.010] / [0.02M] + [0.01M] = 0.010M/0.030M

= 0.3333333...M (calculator answer) = 0.330M (rounded to 2 sig. figs.)

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water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.