Chemistry, 13.03.2021 09:30 nicolehathaway1012

A 1 liter solution contains 0.283 M hydrocyanic acid and 0.377 M potassium cyanide. Addition of 0.311 moles of calcium hydroxide will:
(Assume that the volume does not change upon the addition of calcium hydroxide.)
Raise the pH slightly
Lower the pH slightly
Raise the pH by several units
Lower the pH by several units
Not change the pH
Exceed the buffer capacity

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A 1 liter solution contains 0.283 M hydrocyanic acid and 0.377 M potassium cyanide. Addition of 0.3...