Unit 11 Exit Ticket #5: pH and pOH

Front

What is the water dissociation constant (K_w)?

Back

K_w = 1.0 x 10^-14 at 25°C.

Front

What is the relationship between pH and pOH?

Back

pH + pOH = 14.

Front

How do you calculate pH from [H₃O⁺]?

Back

pH = -log[H₃O⁺].

Front

How do you calculate pOH from [OH⁻]?

Back

pOH = -log[OH⁻].

Front

What is the pH of a neutral solution at 25°C?

Back

pH = 7.

Front

What is the pOH of a neutral solution at 25°C?

Back

pOH = 7.

Front

If [H₃O⁺] = 1.0 x 10^-3 M, what is the pH?

Back

pH = 3.

Front

If [OH⁻] = 1.0 x 10^-3 M, what is the pOH?

Back

pOH = 3.

Front

What happens to pH as [H₃O⁺] increases?

Back

pH decreases.

Front

What happens to pOH as [OH⁻] increases?

Back

pOH decreases.