At what pH of HCl solution will hydrogen gas electrode show electrode potential of -0.118 V 2 H 2 gas is bubbled at 298 K and I atm pressure.
Answers
Answered by
2
Explanation:
H
+
+e
−
→
2
1
H
2
On applying Nernst equation:
E
H
+
/H
2
=E
H
+
/H
2
0
−
1
0.0591
log
H
+
1
−0.118=0−
1
0.0591
log
H
+
1
−0.118=−0.0591×(log
H
+
1
)
−0.118=−0.0591×(−logH
+
)
−0.118=−0.0591×pH
pH=2
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