How many grams of sodium-hydroxide will react with 49g of phosphoric acid?

Question

H3PO4=98g/mol,NaOH=40/mol.The equation is:3H2O+Na3PO4

Answer 1

49 g H3PO4 = ? mols. mols = grams/molar mass
Use the coefficients to convert mols H3PO4 to mols NaOH.
Then g NaOH = mols x molar mass.