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A buffer solution was prepared by dissolving 4.00 grams of sodium propanate (NaCH3CH2CO2, FM 96.06 g/mol)...

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Chemistry

A buffer solution was prepared by dissolving 4.00 grams ofsodium propanate (NaCH3CH2CO2, FM 96.06 g/mol) in a solutioncontaining 0.100 moles of propanoic acid (CH3CH2CO2H) and dilutingthe mixture to 1.00 L. pKa for propanoic acid is 4.874.

(a) To this solution was added 5.00mL of 1.00 M HCl. Calculatethe pH of the resulting solution.

(b) To this solution was added 5.00mL of 1.00 M NaOH. Calculatethe pH of the resulting solution.

Answer & Explanation Solved by verified expert
4.4 Ratings (865 Votes)
moles of NaCH3CH2CO2 49606 0041 moles moles of propanoic acid 01 moles Voluem of mixture 1L So the concentration for both NaCH3CH2CO2 0041 M and Propanoic Acid 01 M pKa given 4874    See Answer
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