Consider how to prepare a buffer solution with pH =
7.33 (using one of the weak...
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Chemistry
Consider how to prepare a buffer solution with pH =7.33 (using one of the weak acid/conjugate basesystems shown here) by combining 1.00 L of a0.418-M solution of weak acid with0.359 M sodiumhydroxide.
Weak Acid
Conjugate Base
Ka
pKa
HNO2
NO2-
4.5 x 10-4
3.35
HClO
ClO-
3.5 x 10-8
7.46
HCN
CN-
4.0 x 10-10
9.40
How many L of the sodium hydroxide solution wouldhave to be added to the acid solution of your choice?
L
Answer & Explanation
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4.3 Ratings (871 Votes)
First the best buffer will be the one with the pKa value closer to the pH desired In this case for a pH of 733 the pKa of 746 would be the best and the ideal So the system to use will be HClO and
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