A 100 L Buffer Solution Is 0

question 48

Multiple Choice

A 1.00 L buffer solution is 0.250 mol L^-1 in HF and 0.250 mol L^-1 in LiF. Calculate the pH of the solution after the addition of 0.150 moles of solid LiOH. Assume no volume change upon the addition of the base. The K_a for HF is 3.5 × 10^-4.

• A) 3.46
• B) 4.06
• C) 2.85
• D) 3.63
• E) 4.24

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Definitions:

Micrometers

Precision measuring devices capable of measuring extremely small distances, such as the thickness or diameter of an object.

Millimeters

A unit of length in the metric system, equal to one thousandth of a meter.

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A component in optical devices used to control the amount of light that passes through a lens.