Question

when NaOH is added to water, the hydroxide concentration increases. what can you conclude about NaOH? a. it releases protons. b. it has a low ph. c. it donates H⁺ ions. d. it is a base.

Answer 1

It is a base

Step-by-step explanation:

a) An acid releases protons.

b) pH is defined as the negative log of the hydrogen ion concentration. If the concentration were 1 x 10^-7, the pH would be:

pH = - log (10^-7)

pH = 7

As the hydrogen ion concentration increases, the pH will also decrease:

pH = - log (10^-1)

pH = 1

If a base is added, the hydrogen ion concentration will decrease, and the pH will be larger.

c) NaOH will absorb H^+ ions

d) Yes, it is a base