A solution of NaOH(aq) contains 7.4 g of NaOH(s) per 100.0 mL of solution. Calculate the...

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Question

A solution of NaOH(aq) contains 7.4 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.

Answer 1

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Answer #1

Moles of NaOH mass/molar mass of NaOH 7.4/40.0 0.185 mol [OH-] [NaOH]moles/volume 0.185/0.100 1.85 M pOH-log[OH-]log(1.85)0.2

Answer 2

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