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The mole fraction of glucose (C6H12O6) in an aqueous binary solution is 0.1. The mass percentage of water in it to the nearest integer is:
| 1. | 44% | 2. | 49 % |
| 3. | 47 % | 4. | 41 % |
Subtopic: Concentration Terms & Henry's Law |
59%
Level 3: 35%-60%
JEE
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4.5 g of a compound A (molar mass = 90 g mol⁻¹) is dissolved in water to prepare 250 mL of solution. The molarity of the solution is expressed as x × 10–1. Find the value of x:
1. Five(5)
2. Four(4)
3. Two(2)
4. One(1)
Subtopic: Concentration Terms & Henry's Law |
83%
Level 1: 80%+
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What is the mole fraction of methyl alcohol in a 5.2 molal aqueous solution of methyl alcohol?
1. 0.100
2. 0.190
3. 0.086
4. 0.050
Subtopic: Concentration Terms & Henry's Law |
71%
Level 2: 60%+
JEE
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A soft drink contains dissolved CO₂ at a concentration of 0.01 M. If the volume of the soft drink is 300 mL, the mass of CO₂ present in the solution is:
1. 0.132 g
2. 0.481 g
3. 0.312 g
4. 0.190 g
1. 0.132 g
2. 0.481 g
3. 0.312 g
4. 0.190 g
Subtopic: Concentration Terms & Henry's Law |
85%
Level 1: 80%+
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The density of a 3 M NaCl solution is 1 g/mL. The molality of the solution is ‘x’. The value of 2x is:
(Round off to the nearest integer.)
1. 7
2. 10
3. 13
4. 5
(Round off to the nearest integer.)
1. 7
2. 10
3. 13
4. 5
Subtopic: Concentration Terms & Henry's Law |
75%
Level 2: 60%+
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A sodium chloride (NaCl) solution has a molarity of 3 M. Given that the density of the solution is 1.25 g/mL, its molality will be:
| 1. | 2.90 | 2. | 2.79 |
| 3. | 1.85 | 4. | 3.85 |
Subtopic: Concentration Terms & Henry's Law |
69%
Level 2: 60%+
JEE
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If the density of an x M solution of NaOH is 1.12 g/mL and its molality is 3 m, determine the value of x:
1. 3.0
2. 2.3
3. 4.0
4. 5.2
1. 3.0
2. 2.3
3. 4.0
4. 5.2
Subtopic: Concentration Terms & Henry's Law |
77%
Level 2: 60%+
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