The mole fraction of the solute in a 1.00 molal aqueous solution is:

 1 0.00177 2 0.0344 3 0.0177 4 0.177
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

Subtopic:  Concentration Based Problem |
82%
From NCERT
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At STP, the density of CCl4 vapour in g/L will be closest to:

1. 8.67

2. 6.87

3. 3.67

4. 4.26

Subtopic:  Concentration Based Problem |
76%
From NCERT
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Which of the following is dependent on temperature?

 1 Molarity 2 Mole fraction 3 Weight percentage 4 Molality
Subtopic:  Concentration Based Problem |
81%
From NCERT
NEET - 2017
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The molality of pure water is:

1. 1 m

2. 18 m

3. 55.5 m

4. None of the above

Subtopic:  Concentration Based Problem |
79%
From NCERT
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20 g of sugar is dissolved in enough water to make a final volume of 2L. The concentration of sugar (C12H22O11) in mol L–1  will be:

1. 0.29 mol/L

2. 0.029 mol/L

3. 0.35 mol/L

4. 0.032 mol/L

Subtopic:  Concentration Based Problem |
77%
From NCERT
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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

Subtopic:  Concentration Based Problem |
80%
From NCERT
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25.3 g of sodium carbonate, Na2CO3, is dissolved in enough water to make 250 mL of a solution. If sodium carbonate completely dissociates, the molar concentrations of sodium ion, Na+ and carbonate ion, $C{O}_{3}^{2-}$are respectively:
(molar mass of Na2CO3 = 106g mol-1)

1. 0.955 M and 1.910 M
2. 1.910 M and 0.955 M
3. 1.90 M and 1.910 M
4. 0.477 M and 0.477 M

Subtopic:  Concentration Based Problem |
71%
From NCERT
AIPMT - 2010
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If 4 g of NaOH dissolves in 36 g of H2O, the molarity of the solution is: (specific gravity of solution is 1 g mL-1) :

 1 3 M 2 3.5 M 3 2.5 M 4 2 M
Subtopic:  Concentration Based Problem |
72%
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The volume occupied by one water molecule (density = 1 g cm-3) is:

1. $9.0×{10}^{-23}$  ${\mathrm{cm}}^{3}$

2. $6.023×{10}^{-23}$  ${\mathrm{cm}}^{3}$

3. $3.0×{10}^{-23}$  ${\mathrm{cm}}^{3}$

4. $5.5×{10}^{-23}$  ${\mathrm{cm}}^{3}$

Subtopic:  Concentration Based Problem |
65%
From NCERT
AIPMT - 2008
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