An aqueous solution of formic acid, HCOOH, is prepared at 0.075M. The acid-ionization constant is Ka= 1.8 x 10-4. Because this is a weak acid, you maypresume that the ionic strength is negligible (m = 0).Calculate:
a) the pKa of HCOOH
b) [H+]
c) [HCOO-]Ă‚Â Ă‚Â
d) [HCOOH] at equilibrium
