Cacodylic acid (dimethylarsinic acid, HASO2(CH3)2) is a common buffer used in biology to prepare and fix biological samples. The pKa of cacodylic acid is 6.3. Part A What is the pH of a buffer solution prepared by mixing 20.0 mL of 0.0600 mol L-INAOH with 20.0 mL of 0.105 mol L¬'cacodylic acid? Express your answer using one decimal place. Tempates Symbols uado redo reset keyboard shortcuts help, pH = Submit Request Answer Part B What is the pH of the buffer solution in part A after 0.0002 moles of H30+ was added to the mixture?

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Cacodylic acid (dimethylarsinic acid, HASO2(CH3)2) is a common buffer used in biology to prepare and fix biological samples. The pKa of cacodylic acid is 6.3.
Part A
What is the pH of a buffer solution prepared by mixing 20.0 mL of 0.0600 mol L-'NaOH with 20.0 mL of 0.105 mol L-!cacodylic acid?
Express your answer using one decimal place.
femplates Symbols uado redo reset keyboard shortcuts help,
pH =
Submit
Request Answer
Part B
What is the pH of the buffer solution in part A after 0.0002 moles of H30+ was added to the mixture?
Express your answer using one decimal place.
Templates Symbols undo redo reset keyboard shortcuts help,
pH =
Transcribed Image Text:Cacodylic acid (dimethylarsinic acid, HASO2(CH3)2) is a common buffer used in biology to prepare and fix biological samples. The pKa of cacodylic acid is 6.3. Part A What is the pH of a buffer solution prepared by mixing 20.0 mL of 0.0600 mol L-'NaOH with 20.0 mL of 0.105 mol L-!cacodylic acid? Express your answer using one decimal place. femplates Symbols uado redo reset keyboard shortcuts help, pH = Submit Request Answer Part B What is the pH of the buffer solution in part A after 0.0002 moles of H30+ was added to the mixture? Express your answer using one decimal place. Templates Symbols undo redo reset keyboard shortcuts help, pH =
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