The concentration of hydrogen ion in a sample of soft drink is . The pH of the soft drink will be:
1. 3.14
2. 2.42
3. 11.58
4. 6.00
The pH of a sample of vinegar is 3.76. The concentration of H+ ions in the sample will be -
A solution containing 2 g of TlOH in 2 litres of water has a pH of?
(Atomic wt of Tl =204)
1. | 11.65 | 2. | 12.45 |
3. | 3.35 | 4. | 2.34 |
When 1mL of 13.6 M HCl is diluted with water to give 1 litre of solution, the pH of the resultant solution will be:
1. | 11.87 | 2. | 3.46 |
3. | 1.87 | 4. | 12.23 |
0.561 g of KOH is dissolved in water to give 200 mL of solution at 298 K. The pH of the solution will be
1. | 12.70 | 2. | 1.30 |
3. | 3.14 | 4. | 11.70 |
At 298 K, the solubility of Sr(OH)2 is 19.23 g/L. The pH of the solution will be:
1. | 1.50 | 2. | 13.50 |
3. | 0.50 | 4. | 12.45 |
The ionic product of water at 310 K is 2.7 × 10–14.
The pH of neutral water at this temperature will be:
1. | 2.56
|
2. | 6.78
|
3. | 7.32
|
4. | 11.41 |
A mixture of 10 mL of 0.2 M Ca(OH)2 and 25 mL of 0.1 M HCl is prepared. The pH of the resultant mixture would be:
1. | 1.90 | 2. | 13.42 |
3. | 1.47 | 4. | 12.63 |
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 |
(a) Human muscle-fluid, pH =6.83
(b) Human stomach fluid, pH = 1.2
(c) Human blood, pH= 7.38
(d) Human saliva, pH =6.4.
Out of the above mentioned biological fluids, the one with the minimum concentration of hydrogen ions is:
1. | Human blood | 2. | Human muscle fluid |
3. | Human stomach fluid | 4. | Human saliva |