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 o

Question

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.

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Amity 3 years 2021-07-17T03:29:47+00:00 1 Answers 137 views 0

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  1. Sapo1
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    2021-07-17T03:31:16+00:00
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    Answer:

    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 = 1×10-12M

    Bleach = 1×10-13M

    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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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )