1. | 7.00 | 2. | 7.87 |
3. | 5.13 | 4. | 6.13 |
1. | 1.1 × 10–13 M | 2. | 1.1 × 10–7 M |
3. | 5.5 × 10–7 M | 4. | 5.5 × 10–8 M |
1. | 3 | 2. | 2 |
3. | 4 | 4. | 1 |
(i) | pH depends on the concentration of acid and base. |
(ii) | pH is independent of the concentration of acid and base. |
(iii) | pH depends on pKa of acid and pKb of base. |
(iv) | pH is independent of pKa of acid and pKb of base. |
1. | only (i) and (iii) | 2. | only (i) and (iv) |
3. | only (ii) and (iii) | 4. | only (ii) and (iv) |
1. | 142 × 10-4 | 2. | 142 × 10-6 |
3. | 125 × 10-4 | 4. | 130 × 104 |