MCQ
The correct formula to calculate the hydroxyl ion concentration of an aqueous solution of $NH_4NO_3$ is
- A$\sqrt {\frac{{C \times {K_w}}}{{{K_b}}}} $
- ✓$\sqrt {\frac{{{K_w} \times {K_b}}}{C}} $
- C$\sqrt {\frac{{C \times {K_w}}}{{{K_a}}}} $
- D$\sqrt {\frac{{{K_a} \times {K_w}}}{C}} $