CBSE Class 11-science Answered

doubt

Asked by minipkda | 30 May, 2019, 09:19: AM

Expert Answer

Barium acetate+acetic acid= acidic buffer

We space know space pH space of space acidic space buffer pH equals pK subscript straight a space plus space log fraction numerator left square bracket Salt right square bracket over denominator left square bracket Acid right square bracket end fraction pKa plus pKb equals 14 pK subscript straight b equals 14 minus 9.26 space space space space space space space equals 4.74 4.04 equals 4.74 plus log fraction numerator left square bracket salt right square bracket over denominator left square bracket acid right square bracket end fraction left square bracket acid right square bracket equals 0.1 space straight M 4.04 minus 4.74 equals log fraction numerator left square bracket barium space acetate right square bracket over denominator 0.1 end fraction left square bracket barium space acetate right square bracket equals 0.5 space straight M moles space of space barium space acetate equals Moles cross times Volume left parenthesis straight l right parenthesis space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 0.5 cross times 100 over 1000 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 0.05 space mole

Answered by Ravi | 30 May, 2019, 04:35: PM

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