48.0 mL of Ca(OH)2 solution was titrated with 19.2 mL of 0.385 mL mol HNO3. Determine the molarity of the Ca(OH)2 solution.

Answer 1

Ca(OH)2 + 2HNO3 ==> Ca(NO3)2 + 2H2O
mols HNO3 = M x L = ?
Look at the coefficients. mols Ca(OH)2 = 1/2 mols HNO3.
Then M (Ca(OH)2 = mols/L = ?