Question 1
What is the reduction half reaction for the following chemical reaction in a basic solution?
Ge2+(aq) + 2 ClO3-(aq) + OH-(aq) → GeO2(s) + 2 ClO2(aq) + H2O(l)
◦ Ge
2+(
aq) + 4 OH
-(
aq) → GeO
2(
s) + 2 H
2O(
l) + 2e
-◦ ClO
3-(
aq) + H
2O(
l) + e
- → ClO
2(
aq) + 2 OH
-(
aq)
◦ ClO
3-(
aq) + 2 H
+(
aq) + e
- → ClO
2(
aq) + H
2O(
l)
◦ Ge
2+(
aq) + 2 H
2O(
l) → GeO
2(
s) + 4 H
+(
aq) + 2e
-Question 2
According to the balanced chemical equation
5 H2C2O4(aq) + 2 MnO4-(aq) + 6 H+(aq) → 10 CO2(g) + 2 Mn2+(aq) + 8 H2O(l)
0.875 grams of oxalic acid, H
2C
2O
4 will react with ________ moles of permanganate, MnO
4-.
◦ 0.009717
◦ 0.003885
◦ 0.019435
◦ 0.024295