Question

Determine the concentration of Se 2 − in a 0.074 M solution of hydroselenic acid, H...

Determine the concentration of Se 2 − in a 0.074 M solution of hydroselenic acid, H 2 Se .

H 2 Se ( a q ) + H 2 O ( l ) − ⇀ ↽ − H 3 O + ( a q ) + HSe − ( a q ) K a 1 = 1.29 × 10 − 4

HSe − ( a q ) + H 2 O ( l ) − ⇀ ↽ − H 3 O + ( a q ) + Se 2 − ( a q ) K a 2 = 1.00 × 10 − 12

Report your answer in scientific notation with 2 significant figures.

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Answer #1

TH. Se + Hw - Hott Hoe k a, = 1.298154 10.074-2 (ty) (any) tse too → H₃ of t se-2 (-y) y ta) j e Kai kas aa-yux; aty na ka, =BACAL Date Page az 0.0958lory me 0.308x10-8 Kaze y = 1x10-12 - [se-2] = 1x10-12 en Scanned with CamScanner

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