Post a New Question

Chemistry

posted by .

Calculate the KA of formic acid if 2.3 g of it is dissolved in 1 litre of water to give [H+] of 0.003 M.

  • Chemistry -

    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.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question