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An aqueous solution contains 0.30 M hydrocyanic acid. One Liter of this solution could be converted into...

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Chemistry

An aqueous solution contains 0.30 Mhydrocyanic acid.

One Liter of this solution could be converted into a buffer bythe addition of which of the following reagents?

(Assume that the volume remains constant as each substance isadded.)

Question 15 options:(more than one choice)

0.15 mol HClO4

0.30 mol KClO4

0.31 mol HClO4

0.31 mol KCN

0.149 mol NaOH

Answer & Explanation Solved by verified expert
3.7 Ratings (559 Votes)
For an efficient buffer the realation between pH and pKa ofweak acid are in relation1 L of 030 M HCN 1x030 LxM HCN 030 LxmolL 030mol HCNAn acidic buffer is consisted of weak acid    See Answer
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