Cola contains phosphoric acid, H3PO4. In order to determine the concentration of phosphoric acid in 50mL of Cola, a precipitation reaction with excess silver nitrate was carried out. The product, silver phosphate, was dried and found to weigh 0.0576g. What is the concentration of phosphoric acid in the Cola.

Answer 1

mass Ag3PO4 = 0.0576 grams.
moles Ag3PO4 = 0.0576 g/molar mass Ag3PO4.
mols phosphate = ??
Moles H3PO4 = ??
grams H3PO4 = ??
How do you want concentration calculated. g/mL is g/50 mL.
M = moles/L.