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10. (a) A chemist needed a buffered solution of propionic acid (CH,CH,COOH) and its salt (CH,CH,COON.)....

10. (a) A chemist needed a buffered solution of propionic acid (CH,CH,COOH) and its salt (CH,CH,COON.). Calculate the ratio (CH:CH;COONA] / [CH;CH;COOH] required to yield a pH of 4.A0 (Ka for propionic acid = 1.3x10) (b) A buffer solution is prepared by mixing 1.AB5 grams of acetic acid (CH3COOH) and 3.01C grams of sodium acetate (CH3COONA) and making the total volume to one litre. Calculate the pH of the buffer solution. (Ka = 1.8x10°) (RAM of H=1, C=12, O=16, Na=23) (Use the value of A, B, C & D from your college ID for Question 10 a & b) 4 2 J/S ABCD

A=1
B=5
C=2
D=6

0 0
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Answer #1

- СИСн, со он ? Here A=1, B = 5, 2 and D=6 pH = pka + log (bare] Here acid bare - CH CH₃COONa Р= 4 до = 4:10 a= 13X) 0 = } 1.

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