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Is it true that an HCl/NaCl mixture will act as a more effective buffer than a mixture of CH3COOH & CH3COONa?

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Related questions

Which of the following solutions is a buffer?

a) 0.10 M CH3COOH and 0.10 M CH3COONa

b) 0.10 M CH3COOH

c) 0.10 M HCl and 0.10 M NaCl

d) both a and c

e) all of a, b, and c

Which of the following solutions is a buffer? (a) 0.10 M CH3COOH and 0.10 M CH3COONa, (b) 0.10 M CH3COOH, (c) 0.10 M HCl and 0.10 M NaCl, (d) both a and c, (e) all of a, b, and c.

3. Determine the pH at 25C of a solution prepared by dissolving 0.25 mole of ammonium chloride in 1.0 L of 0.28 M aqueous ammonia.

7.The pH of a bicarbonate-carbonic acid buffer is 7.28. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3Ć¢ĀˆĀ’).(Ka1 of carbonic acid is 4.2 ƃĀ—10Ć¢ĀˆĀ’7)

18. Calculate the pH of the following two buffer solutions:
(a) 1.1 M CH3COONa/2.9 M CH3COOH.
(b) 0.1 M CH3COONa/0.3 M CH3COOH.
Which is the more effective buffer?

A.

1.1 M CH3COONa/2.9 M CH3COOH
B.

0.1 M CH3COONa/0.3 M CH3COOH

32. The pH of a sodium acetate-acetic acid buffer is 4.60. Calculate the ratio [CH3COOĆ¢ĀˆĀ’] / [CH3COOH].

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