A solution of glucose (M.W = 180 g mol–1) in water is 10 % w/w. The mole fraction of each component in the solution is:

1. Mole fraction of glucose - 0.44; mole fraction of water - 0.56
2. Mole fraction of glucose - 0.056; mole fraction of water - 0.944
3. Mole fraction of glucose - 0.011; mole fraction of water - 0.99
4. Mole fraction of glucose - 0.36; mole fraction of water - 0.64

Subtopic:  Concentration Terms & Henry's Law |
 72%
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An antifreeze solution is prepared from 222.6 g of ethylene glycol (C2H6O2) and 200 g of water. The molality of the solution would be:

1. 6.9 m 2. 17.9 m
3. 29.9 m 4. 21.9 m
Subtopic:  Concentration Terms & Henry's Law |
 82%
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A drinking water sample was found to be contaminated with chloroform at a level of 15 ppm (by mass). What is the mass percent of chloroform in the sample?

1. 15×10-4

2. 1.5×10-4

3. 0.15×10-4

4. 15×10-5

Subtopic:  Concentration Terms & Henry's Law |
 64%
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The type of molecular interactions in a solution of alcohol and water is:

1. Electrostatic interaction 2. London dispersion forces
3. Hydrogen bonding 4. Ion-dipole interaction
Subtopic:  Raoult's Law |
 86%
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The graph representing Henry's law is given below:

    

The value of the slope will be

1. \(4\times10^{-4}~\mathrm{torr}\) 2. \(5\times10^{-4}~\mathrm{torr}\)
3. \(4\times10^{4}~\mathrm{torr}\) 4. \(5\times10^{4}~\mathrm{torr}\)

Subtopic:  Concentration Terms & Henry's Law |
 81%
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Points A and B in the below-mentioned graph represent, respectively:

1. Partial pressures of first and second components
2. Vapour pressures of the pure second and first components
3. Partial pressures of second and first components
4. Vapour pressures of the pure first and second components

Subtopic:  Raoult's Law |
 62%
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The law represented by given graph is -

1. Henry's law 2. Raoult's law
3. Boyle's law 4. Charle's law
Subtopic:  Raoult's Law |
 78%
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Which graph represents the positive deviation of vapor pressure?

1.  2.
3. 4. None of the above
Subtopic:  Raoult's Law |
 88%
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Which graph represents the elevation in boiling point?

1.
2.
3.
4. None of the above.
Subtopic:  Elevation of Boiling Point |
 74%
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The following solutions were prepared by dissolving 10 g of glucose (C6H12O6) in 250 ml of water (P1), 10 g of urea (CH4N2O) in 250 ml of water (P2) and 10 g of sucrose (C12H22O11) in 250 ml of water (P3). The decreasing order of osmotic the pressure of these solutions is:

1. P2 > P3 > P1 2. P3 > P1 > P2
3. P2 > P1 > P3 4. P1 > P2 > P3
Subtopic:  Osmosis & Osmotic Pressure |
 70%
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