If 22 g of benzene is dissolved in 122 g of carbon tetrachloride then the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) are respectively:
1. 86.32 %; 13.68 %
2. 13.68 %; 86.32 %
3. 84.72 %; 15.28 %
4. 15.28 %; 84.72 %
Subtopic:  Concentration Terms & Henry's Law |
64%
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The mole fraction of benzene in solution containing 30% by mass in carbon tetrachloride is:

1. 0.528
2. 0.618
3. 0.458
4. 0.338
Subtopic:  Concentration Terms & Henry's Law |
54%
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The molarity of 30 g Co(NO3)2. 6H2O in 4.3 L of solution is:

1. 0.053 M
2. 0.043 M
3. 0.023 M
4. 0.063 M

Subtopic:  Concentration Terms & Henry's Law |
65%
From NCERT
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The mass of urea (NH2CONH2) required to  make 2.5 kg of 0.25 molal aqueous solution is:

1. 39 g
2. 37 g
3. 41 g
4. 35 g
Subtopic:  Concentration Terms & Henry's Law |
77%
From NCERT
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Calculate the molarity of the KI solution, provided its density is 1.202 g mL-1 and it consists of a 20% (mass/mass) concentration.

1. 1.25 M
2. 1.95 M
3. 1.45 M
4. 2.15 M
Subtopic:  Concentration Terms & Henry's Law |
62%
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The solubility of H2S in water at STP is 0.195 m, The value of Henry’s law constant will be-
 1 274 atm 2 285 atm 3 295 atm 4 278 atm
Subtopic:  Concentration Terms & Henry's Law |
52%
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Henry’s law constant for CO2 in water is 1.67 × 108 Pa at 298 K. The quantity of CO2 in 500 mL of soda water when packed under 2.5 atm CO2 pressure at 298 K is-

1. 1.24 g
2. 1.45 g
3. 1.65 g
4. 1.85 g
Subtopic:  Concentration Terms & Henry's Law |
From NCERT
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The molarity of solution obtained when 30 mL of 0.5 M H2SO4 solution diluted to 500 mL is:

1. 0.03 M
2. 0.0003 M
3. 3.0 M
4. 30 M
Subtopic:  Concentration Terms & Henry's Law |
81%
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The density of 20% (mass/mass) aqueous KI is 1.202 g mL-1. The molality of KI solution is:

1. 1.21 m
2. 1.91 m
3. 1.71 m
4. 1.51 m
Subtopic:  Concentration Terms & Henry's Law |
53%
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The density of 20% (mass/mass) aqueous KI is 1.202 g mL-1. The mole fraction of KI in the solution is:

1. 0.0223
2. 0.0343
3. 0.0163
4. 0.0263

Subtopic:  Concentration Terms & Henry's Law |
52%
From NCERT