What is the concentration of a HCl solution if 20.0 mL of the solution is neutralized by 15.0 mL of a 0.10 M Ca(OH)₂ solution?

Question

Quizplus · Accepted Answer

The balanced chemical equation for the reaction is 2HCl + Ca(OH)2 → CaCl2 + 2H2O. This means 2 moles of HCl react with 1 mole of Ca(OH)2. Using the formula M1V1 = M2V2 and considering the stoichiometry, (M1)(20.0 mL) = (0.10 M)(15.0 mL)(2). Solving for M1 gives 0.15 M.

What Is the Concentration of a HCl Solution If 20