Answer to Question #64829 in General Chemistry for Theo Brownswood

Question

1) If Instead of using HCI, you used HNO3 with the same volume and concentration as HCI, would you use the same volume of NaOH to reach the endpoint? What about using H2SO4? Justify your answers

Answer 1

Actually, it strongly depends on what kind of concentration do you mean. If you mentioned molar concentration, then there is no deference between HCl and HNO3 in a reaction with NaOH: HCl = H+ + Cl- and HNO3 = H+ + NO3-

However, H2SO4 can give upon the dissociation 2 mols of H+ cations and this affects another kind of stoichiometry - H2SO4 + 2NaOH = Na2SO4 + 2H2O or H2SO4 + NaOH = NaHSO4 + H2O.