Asked by Sarah
Calculate the mass (in g) of solid potassium hydroxide required to prepare:
a) 1.75 litres of a solution with pH 11.5
a) 1.75 litres of a solution with pH 11.5
Answers
Answered by
Scott
pOH = 14 - pH = 2.5
[OH⁻] = 1.0E-2.5 = .0032 M
1.75 * .0032 = .0056 moles of KOH
multiply by the molar mass to find the quantity required
[OH⁻] = 1.0E-2.5 = .0032 M
1.75 * .0032 = .0056 moles of KOH
multiply by the molar mass to find the quantity required
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