Final answer:
To calculate the pH of a .35M solution of ammonium bromide, you need to consider the hydrolysis of the ammonium ion in water. The equation for the hydrolysis reaction is NH4+ + H2O ⇌ NH3 + H3O+. Using the equilibrium expression and the dissociation constant Ka, you can calculate the concentration of H3O+ and then convert it to pH.
Step-by-step explanation:
To calculate the pH of a .35M solution of the salt ammonium bromide, we need to consider the hydrolysis of ammonium ion (NH4+) in water. The equation for the hydrolysis reaction is:
NH4+ + H2O ⇌ NH3 + H3O+
Since ammonium bromide is a salt, it completely dissociates in water, so the concentration of NH4+ is 0.35M. To calculate the pH, we need to consider the equilibrium expression for the hydrolysis reaction and solve for the concentration of H3O+.
Using the relationship Ka = [NH3][H3O+]/[NH4+], we can calculate the concentration of H3O+ and then convert it to pH using the formula pH = -log[H3O+].