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21 March, 20:16

A solution of ammonia has a pH of 11.8. What is the concentration of OH - ions in the solution?

Useful formulas include StartBracket upper H subscript 3 upper O superscript plus EndBracket equals 10 superscript negative p H., StartBracket upper O upper H superscript minus EndBracket equals 10 superscript negative p O H., p H plus P O H equals 14., and StartBracket upper H subscript 3 upper O superscript plus EndBracket StartBracket upper O upper H superscript minus EndBracket equals 10 to the negative 14 power ...

1.58 x 10^-12 M

6.31 x 10^-3 M

2.20 M

158 M

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Answers (2)
  1. 21 March, 20:24
    0
    2.20

    Explanation:

    Edge 2020
  2. 21 March, 20:32
    0
    The answer is 2.20 M

    Explanation:

    This is because ammonia has a pH of 11.8 and if you take 14-11.8 it equals 2.2 so the answer is 2.20 M
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