Ammonia appears in Table 1-5 both as an acid and as a conjugate base. (a) Explain h...

Ammonia appears in Table 1-5 both as an acid and as a conjugate base.

(a) Explain how ammonia can act as both an acid and a base. Which of these roles does it commonly fill in aqueous solutions?

(b) Show how water can serve as both an acid and a base.

(c) Calculate K_a and pK_a for the hydronium ion, H₃O⁺.

(d) Show how methanol (CH₃OH) can serve as both an acid and a base. Write an equation for the reaction of methanol with sulfuric acid.