Question on M1 V1 = M2 V2 equation?

HA (aq) + OH- (aq) <-> H2O (l) + A- (aq)

I need to find the molarity of A-

I am given 5 ml of 0.200M HA and 2.5 ml of 0.100M OH

Do i combine the moles and the volume of HA and OH to get M1 and V1?

Chad2011-02-01T00:30:41Z

Favorite Answer

m1v1=m2v2 is for dilutions. If that is an equilibrium arrow you are showing, you are going to need an equilibrium constant. If it is just a forward arrow like -->, then it's a limiting reagent problem and you need to find moles of HA and moles of OH.