Asked by Aminat
Calculate the molar concentration of ethanoic acid needed to prepare ethanoate buffer of PH 6.8 using 0.5m solution of sodium ethanoate. Pka of ethanoate acid is 0.127
Answers
Answered by
DrBob222
Do you mean 0.5M. M means molar. m means molal.
pH = pKa + log (base)/(acid)
6.8 = 0.127 + log (0.5M/x)
Sovle for x.
pH = pKa + log (base)/(acid)
6.8 = 0.127 + log (0.5M/x)
Sovle for x.
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