Household ammonia has a pH of 12; household bleach has a pH of 13. Which of the following statements about these substances is true? Group of answer choices The ammonia has 10 times as many OH- ions as the bleach. The ammonia has 10 times as many H+ ions as the bleach. A solution that could buffer the bleach and ammonia would remove excess OH- ions. Both of these substances are strong acids.

The ammonia has 10 times as many H+ ions as the bleach.

Explanation:

pH is defined as -log[H+]

[H+] of ammonia is = 10^-12 = 1x10-12M

Bleach = 1x10-13M

pOH = 14-pH = 2 for ammonia and 1 for bleach

[OH-] = 10^-pOH = 0.01M for ammonia and 0.1M for bleach

Thus:

The ammonia has 10 times as many OH- ions as the bleach. FALSE.

The ammonia has 10 times as many H+ ions as the bleach. TRUE.

A solution that could buffer the bleach and ammonia would remove excess OH- ions. FALSE. A buffer maintains OH- ion concentration

Both of these substances are strong acids. FALSE. Strong acids have pHs < 7

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