Asked by Jake
A solution of formic acid 0.20 M has a pH of 5.0. What is its Ka value?
a) 5.0 x 10-10
b) 1.0 x 10-5
c) 5.0 x 10-5
d) 25
a) 5.0 x 10-10
b) 1.0 x 10-5
c) 5.0 x 10-5
d) 25
Answers
Answered by
DrBob222
Convert pH of 5.0 to H^+. You should get 1E-5.
Set up ionization as we did HBz.
Set up ICE chart as in HBz but here you have H^+ given.
Substitute into Ka expression and solve for Ka.
Set up ionization as we did HBz.
Set up ICE chart as in HBz but here you have H^+ given.
Substitute into Ka expression and solve for Ka.
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