You've been asked by your research advisor to prepare 250.00 mL of a 0.015 M buffer....

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You've been asked by your research advisor to prepare 250.00 mL of a 0.015 M buffer....

You've been asked by your research advisor to prepare 250.00 mL of a 0.015 M buffer. The target pH is 4.70.The components are C₇H₅O₂^–/HC₇H₅O₂ and the K_a of the weak acid is 6.5 × 10^–5.

What volume (in mL) of a 0.050 M C₇H₅O₂^– solution is required to prepare the desired buffer? What volume (in mL) of a 0.050 M HC₇H₅O₂ solution is required to prepare the desired buffer?

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