IF A 50.0 ML SAMPLE OF CALCIUM HYDROXIDE IS TITRATED WITH 25.0 ML OF 0.200M PHOSPHORIC ACID, WHAT IS THE MOLARITY OF THE BASE?

Answer 1

3Ca(OH)2 + 2H3PO4 ==> 6H2O + Ca3(PO4)2
mols H3PO4 = M x L = ?
Using the coefficients in the balanced equation, convert mols H3PO4 to mols Ca(OH)2. That will be
mols H3PO4 x (3 mols Ca(OH)2/2 mols H3PO4) = mols H3PO4 x (3/2) = ?
Then M Ca(OH)2 = mols Ca(OH)2/L Ca(OH)2