The ionization constant of acetic acid is 1.74 × 10–5. The pH of acetic acid in its 0.05 M solution will be:
1. | 7.81
|
2. | 3.03
|
3. | 8.54
|
4. | 1.45 |
The ionization constant of propanoic acid is 1.32 × 10–5. The degree of ionization of 0.05M acid solution will be:
1. = 0.63 x 10-2
2. = 1.63 x 10-4
3. = 1.63 x 10-2
4. = 0.05 x 10-2
The first ionization constant of H2S is 9.1 × 10–8. The concentration of HS– ion in its 0.1 M solution will be:
1. | 12.3 x 10-7 M | 2. | 11.4 x 10-6 M |
3. | 3.5 x 10-4 M | 4. | 9.54 x 10-5 M |