Question

g. Amount of charge required to reduce
Imole of NO3-to N2O is
a) 3F
c) 4F
b) 8F
d) 9F

Answer 1

Answer:

$\boxed{\text{c) 4 F}}$

Explanation:

1. Write the skeleton equation for the half-reaction

NO₃⁻ ⟶ N₂O

2. Balance all atoms other than H and O

2NO₃⁻ ⟶ N₂O

3. Balance O by adding H₂O molecules to the deficient side.

2NO₃⁻ ⟶ N₂O + 5H₂O

4. Balance H by adding H⁺ ions to the deficient side.

2NO₃⁻ + 10H⁺ ⟶ N₂O + 5H₂O

5. Balance charge by adding electrons to the deficient side.

2NO₃⁻ + 10H⁺ + 8e⁻ ⟶ N₂O + 5H₂O

The amount of charge required to reduce 2 mol of NO₃⁻ is 8 F

$\text{The amount of charge required to reduce 1 mol of NO _{3}^{-} is \boxed{\textbf{4 F}}}$

Answer 2

the answer would be c 4f