The molarity of a solution containing 5.85 g of NaCl(s) per 500 mL of solution is -

1. 4 mol L–1

2. 20 mol L–1

3. 0.2 mol L–1

4. 2 mol L–1

Subtopic:  Concentration Based Problem |
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If 500 mL of a 5 M solution is diluted to 1500 mL, the molarity of the resultant solution is:

1. 1.5 M

2. 1.66 M

3. 0.017 M

4. 1.59 M

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If the concentration of glucose  (C6H12O6)  in the blood is 0.9 g L–1, then the molarity of glucose in the blood is:
1. 5 M
2. 50 M
3. 0.005 M
4. 0.05 M

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The molality of a solution containing 18.25 g of HCl gas in 500 g of water is -

 1 0.1 m 2 1 M 3 0.5 m 4 1 m
Subtopic:  Concentration Based Problem |
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The number of molecules of H2SO4 present in 100 mL of 0.02 M H2SO4 solution are:

1. $12.044×{10}^{20}$ molecules

2. $6.022×{10}^{23}$ molecules

3. $1×{10}^{23}$ molecules

4. $12.044×{10}^{23}$ molecules

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The mass percent of carbon in carbon dioxide is:

 1 0.034% 2 27.27% 3 3.4% 4 28.7%
Subtopic:  Concentration Based Problem |
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Sulphuric acid reacts with sodium hydroxide as follows

${\mathrm{H}}_{2}{\mathrm{SO}}_{4}+2\mathrm{NaOH}\to {\mathrm{Na}}_{2}{\mathrm{SO}}_{4}+2{\mathrm{H}}_{2}\mathrm{O}$

When 1L of 0.1 M sulphuric acid solution is allowed to react with 1 L of 0.1 M sodium hydroxide solution, the amount of sodium sulphate formed and its molarity in the solution obtained are respectively-

1. 0.1 M, 7.10 g

2. 7.10 g, 0.025 M

3. 0.025 M, 3.55 g

4. 3.55 g, 0.25 M

Subtopic:  Concentration Based Problem |
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Which of the following solutions have the same concentration?

 1 20 g of NaOH in 200 mL of solution 2 0.5 mol of KCl in 200 mL of solution 3 40 g of NaOH in 100 mL of solution 4 20 g of KOH in 200 mL of solution

1. (a), (b)

2. (b), (c)

3. (c), (d)

4. (b), (d)

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Unitless terms among the following are:

 (a) Molality (b) Molarity (c) Mole fraction (d) Mass percent
Choose the correct option:
 1 (a), (b) 2 (b), (c) 3 (c), (d) 4 (b), (d)
Subtopic:  Concentration Based Problem |
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