Chemistry question ?
30.00 of H 2 SO 4 solution with an unknown concentration was titrated to a phenolphthalein endpoint with 45.79 of 0.1281 M NaOH solution. What is the concentration of the H 2 SO 4 solution?
- Roger the MoleLv 71 month agoFavorite Answer
H2SO4 + 2 NaOH → Na2SO4 + 2 H2O
Supposing the same unnamed units were used for measuring both volumes of the reactants:
(45.79 x 0.1281 M NaOH) x (1 mol H2SO4 / 2 mol NaOH) / (30.00 H2SO4) =
0.09776 M H2SO4
- Anonymous1 month ago
NaOH(aq) is needed to neutralize 25.0 of HCl(aq) . Calculate the By titration, it is found that 20.1 of 0.173 M concentration of the HCl solution