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A solution has a pH of 10.
What is the concentration of hydrogen ions?

Sagot :

[H+] = 10−pH, by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of "Solution A" is, [H+] = 10−5.6 ≈ 0.0000025 = 2.51 × 10−6 M.