The pH of the solution containing 50 mL each of 0.10 M sodium acetate and 0.01 M acetic acid is:
[Given pKa of CH3COOH = 4.57]
1. 2.57
2. 5.57
3. 3.57
4. 4.57
Subtopic:  pH calculation |
64%
From NCERT
NEET - 2022
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If 0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is:
 1 3 2 2 3 4 4 1
Subtopic:  pH calculation |
67%
From NCERT
NEET - 2022
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pH of a saturated solution of $\mathrm{Ca}{\left(\mathrm{OH}\right)}_{2}$ is 9. The solubility product $\left({\mathrm{K}}_{\mathrm{sp}}\right)$ of $\mathrm{Ca}{\left(\mathrm{OH}\right)}_{2}$ is:

1. $0.5×{10}^{-10}$

2. $0.5×{10}^{-15}$

3. $0.25×{10}^{-10}$

4. $0.125×{10}^{-15}$

Subtopic:  pH calculation |
66%
From NCERT
NEET - 2019
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The pH of a 0.01 M NaOH (aq) solution will be:

 1 7.01 2 2 3 12 4 9
Subtopic:  pH calculation |
81%
From NCERT
NEET - 2019
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The following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :

A)  $60$ $mL$ $\frac{M}{10}HCI$  $+$ $40$ $mL$ $\frac{M}{10}NaOH$
B)   $55$ $mL$ $\frac{M}{10}HCI$  $+$ $45$ $mL$ $\frac{M}{10}NaOH$
C)  $75$ $mL$ $\frac{M}{5}HCI$  $+$ $25$ $mL$ $\frac{M}{5}NaOH$
D)  $100$ $mL$ $\frac{M}{10}HCI$  $+$ $100$ $mL$ $\frac{M}{10}NaOH$

pH of which one of them will be equal to 1?

1. B
2. A
3. D
4. C

Subtopic:  pH calculation |
51%
From NCERT
NEET - 2018
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When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the pH of the resulting solution will be:

 1 12.65 2 2 3 7 4 1.04
Subtopic:  pH calculation |
73%
From NCERT
NEET - 2015
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Which of the following salts will give the highest pH in water?
1. KCl
2. NaCl
3. Na2CO3
4. CuSO4

Subtopic:  pH calculation |
75%
From NCERT
AIPMT - 2014
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Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value?

1. $$\mathrm{B a C l_{2}}$$
2. $$\mathrm{A l C l_{3}}$$
3. $$\mathrm{L i C l}$$
4. $$\mathrm{B e C l_{2}}$$${}_{}$

Subtopic:  pH calculation |
55%
From NCERT
AIPMT - 2012
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What is the [OH-] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2?

1. 0.10 M

2. 0.40 M

3. 0.0050 M

4. 0.12 M

Subtopic:  pH calculation |
62%
From NCERT
AIPMT - 2009
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Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the H+ ion concentration in the mixture?
1. $1.11×{10}^{-4}$ $\mathrm{M}$
2. $3.7×{10}^{-4}$ $\mathrm{M}$
3. $3.7×{10}^{-3}$ $\mathrm{M}$
4. $1.11×{10}^{-3}$ $\mathrm{M}$

Subtopic:  pH calculation |
66%
From NCERT
AIPMT - 2008
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