Posted by Andrea on Sunday, May 13, 2012 at 9:34pm.
mols HCOOH = grams/molar mass, then
M = mols/L soln. I get about 0.05M but you should confirm that.
.........HCOOH + H2O ==> H3O^+ + HCOO^-
I .......0.05..............0.......0
C.......-0.003.........0.003..0.003
E...0.05-0.003.........0.003...0.003
Substitute from the ICE chart above into the IKa expression and solve for Ka.
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