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a) You have to prepare a pH 5.25 buffer from the following 0.100 M solutions available: 1....

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Chemistry

a) You have to prepare a pH 5.25 buffer from the following 0.100M solutions available:

1. hydrocyanic acid

2. hypobromous acid

3. propanoic acid

4. potassium cyanide

5. potassium hypobromite

6. potassium propanoate

Which solutions would you choose to make the most effectivebuffer? Why?

b) How many milliliters of each of each o the solutions selectedin part a would you use to make one liter of the final buffersolution?

Answer & Explanation Solved by verified expert
3.8 Ratings (444 Votes)
a Propanoic acid Ka 13 x 105 Of the acids listed the Ka value for propanoic acid to potassium propanoate is closest to the desired hydrogen ion concentration Therefore you need    See Answer
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