20 ml. of 0.1 M acetic acid is mixed with 50 ml. of potassium acetate. \K_{\a} of acetic acid = 1.8\times10^{-5} at 27°C. Calculate concentration of potassium acetate if pH of the mixture is 4.8.

VITEEE 2009 Paper

Question : 78 of 120

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20 ml. of 0.1 M acetic acid is mixed with 50 ml. of potassium acetate. Ka of acetic acid = 1.8×10−5 at 27°C. Calculate concentration of potassium acetate if pH of the mixture is 4.8.

0.1 M
0.04 M
0.4 M
0.02 M

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