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Chemistry
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14 Jun 2020

A chemist needs a solution buffered at from chloroacetic acid ().  Calculate the conjugate base-weak acid ratio required 

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General Chemistry 2
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Solve problems involving buffer solutions
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Related questions


Part A: Calculate the pH of a 0.316 M aqueous solution of hydrofluoric acid (HF, Ka = 7.2×10-4) and the equilibrium concentrations of the weak acid and its conjugate base.

pH=? [HF]equilibrium= ? [F-]equilibrium= ?

Part B:Calculate the pH of a 0.0193 M aqueous solution of chloroacetic acid (CH2ClCOOH, Ka = 1.4×10-3) and the equilibrium concentrations of the weak acid and its conjugate base.

pH=? [CH2ClCOOH]equilibrium = ? [CH2ClCOO- ]equilibrium = ?

Identify the principle conjugate acid/base pair and calculate the ratio between them in a solution that is buffered to 9.00 and contains H3AsO4

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