calculate ka for the caption and kb for the anion I'm an aqueous NH4CN solution. is...

Question

Question

calculate ka for the caption and kb for the anion I'm an aqueous NH4CN solution.

is the solution acidic, basic, or neutral

Answer 1

Answer #1

pKa of NH4+ = 9.255

pKb of CN- = 4.792

pH = 7 + 1/2 (pKa - pKb)

= 7 + 1/2 (9.255 - 4.792)

pH = 9.23

so this solution is basic

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Answer 2

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