- Objective: To explain the difference in basicity between NaOH and NH3H2O solutions - Results: The pH determined by pH electrode is 11.02 for 0.0010MNaOH and 10.12 for 0.0010MNH3H2O solutions. - Justifications in Discussion (Choose ONE of the following possible justification statements): (a) NaOHNa++OH,NaOH is a strong base with 100% dissociation to Na+and OH. Therefore, [OH1]=0.0010M,pOH=log0.0010=3.00 only partially correct (b) For NaOH solution, pH=14pOH=143.00=11.00, which is close to the determined value of 11.02 8.. One should always wear gloves when handling NaOH because it is a strong base not revan 24. The reaction of NaOH with HCl releases heat. not reievant (e) NH3+H2ONH4++OH,NH3H2O is a weak base that partially reacts with H2O to release OH. Therefore, the NH3H2O solution contains less OHthan that in NaOH solution at the same concentration. (f) NH3H2O reacts with HCl to form salt: NH3H2O+HCl=NH4Cl+H2O. - Conclusions: A 100% dissociation of the strong base NaOH leads to more OH released, thus a hiaher pH than that of the weak base NH3H2O at the same concentration