The concentration of hydrogen ion in a sample of soft drink is $3.8$ $×{10}^{-3}$ $\mathrm{M}$. The  pH of the soft drink will be:

 1 3.14 2 2.42 3 11.58 4 6
Subtopic:  pH calculation |
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The pH of a sample of vinegar is 3.76. The concentration of H+ ions in the sample will be -

$1.$ $1.74$ $×$ ${10}^{-4}$ $\mathrm{M}$
$2.$ $2.34$ $×$ ${10}^{-11}\mathrm{M}$
$3.$ $2.86$ $×$ ${10}^{-10}$ $\mathrm{M}$
$4.$ $1.74$ $×$ ${10}^{-3}$ $\mathrm{M}$

Subtopic:  pH calculation |
71%
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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
Subtopic:  pH calculation |
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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
Subtopic:  pH calculation |
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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 12.7 2 1.3 3 3.14 4 11.7
Subtopic:  pH calculation |
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At 298 K, the solubility of Sr(OH)2 is 19.23 g/L. The pH of the solution will be:

 1 1.5 2 13.5 3 0.5 4 12.45

Subtopic:  pH calculation |
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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

Subtopic:  pH calculation |
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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 1.9 2 13.42 3 1.47 4 12.63
Subtopic:  pH calculation |
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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

Subtopic:  Ionisation Constant of Acid, Base & Salt | pH calculation |
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(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
Subtopic:  pH calculation |
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