Question

Calculate the pH of the aqueous solutions prepared by adding:
20.0 cm^3 of 0.10M NH4Cl to 20.0 cm^3 of 0.18M HCl

Answer 1

Tip1: write down the equation of the reaction that takes place between those compounds.
Tip2: work out amounts in solution

Answer 2

Thanks! What would be the equation? Do I write the reaction of NH3 with HCl to give NH4Cl?

Answer 3

No, it's the opposite. NH4Cl is a reactant, not a product of the reaction.