A 0.02 M solution of pyridinium hydrochloride has a pH of 3.44. The ionization constant of pyridine will be:
1. | 2. | ||
3. | 4. |
The ionization constant of nitrous acid is 4.5 × 10–4. The pH of a 0.04 M sodium nitrite solution will be:
1. | 2.56 | 2. | 6.14 |
3. | 7.96 | 4. | 11.74 |
The ionization constant of chloroacetic acid is 1.35 × 10–3. The pH of a 0.1 M acid solution will be:
1. | 1.94
|
2. | 6.14
|
3. | 3.23
|
4. | 5.64 |
The salt that gives a neutral solution in water is:
1. | KBr
|
2. | NH4NO3
|
3. | NaCN | 4. | Rb2(CO3) |