Recent content by Hhhduihsuid

Did you rmb to balance your equation? It should be: 2HCl + MgO --> MgCl2 + H2O So n(MgO) = 1/2 * n(HCl) used = 1/2 * 0.19606mol = 0.09803mol (instead of 0.19606mol which is what you got) From there, since n(MgO) in the 100mL aliquot = 0.09803mol, then n(MgO) in the original 1L solution...