Just to make sure that I understand, if there was just enough water to dissolve the NH4Cl, the solution should have been acidic, right? And the reason the solution was neutral was because the H2O (neutral) diluted or neutralized the acid?
Just one more thing, the reaction of the acid + the base is a "neutralization" reaction because it produced a salt and H2O. The salt can be acidic or basic or neutral, right? Why is it called a neutralization reaction?