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OpenStudy (anonymous):
Check Work ? What is the concentration of acetic acid in a pH 4.90 buffer solution that has total concentration (acetic acid + acetate ion) 0.750 M? (Ka of acetic acid is 1.8 x 10^-5) ______________ pH=pka + log [B]/[A] pka=-log(1.8 x 10^-5)= 4.74 4.90=4.74+ log [?]/0.750M 0.16= log [?]/0.750M 10^0.16=10^log [?]/0.750M 1.45=[?]/0.750 and I'm stuck here
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