Question

The pOH of a solution is 7.84. What is the hydronium ion concentration?

Answer 1

pH = -log([H])

where, [H] is the molar concentration of hydogen ions

[H] = antilog(-pH)

[H] = antilog(-7.84)

[H] = 10⁻⁸×1.44

I think this is the answer

The value of the antilog pls recheck

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Answer 2

pH = 14 - pOH

= 14 - 7.84

= 6.16

pH = -log [H+]

So [H+] = - antilog pH

= -antilog [6.16]

= 6.91 * 10^-7