Available solutions are 1L of 0.1 M NaCl and 2L of 0.2 M CaCl2. Using only these two solutions what maximum volume of a solution can be prepared having [Cl] = 0.34M exactly. Both electrolytes are strong

(1) 2.5 L

(2) 2.4 L

(3) 2.3 L

(4) None of these

Concept Questions :-

Concentration Term and Numericals
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Calculate the osmotic pressure of the solution prepared in the abovequestionT = 300 K, (R = 0.082 L atm mol-1K-1)

(1) 10.8 atm

(2) 12.8 atm

(3) 5.6 atm

(4) None of these

Concept Questions :-

Osmosis and Osmotic Pressure
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Consider equimolal aqueous solutions of NaHSO4 and NaCl with ATb and Arb as their respective boiling point elevations. The value of limx0ΔTbΔTb' will be :

(1) 1

(2) 1.5

(3) 3.5

(4) 3

Concept Questions :-

Elevation of Boiling Point
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The vapor pressures of benzene, toluene and a xylene are 75 Torr, 22 Torrand 10 Torr at 20°C. Which of the following is not a possible value of the vapor pressure of an equimolar binary/ternary solution of these at 20°C ? Assume all form ideal solution with each other.

(1) 4812

(2) 16

(3) 3523

(4) 5312

Concept Questions :-

Dalton’s Law of Partial Pressure/ Henry"s law
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3.24 g of Hg(NO3)2 (molar mass = 324) dissolved in 1000 g of water constitutes a solution having afreezing point of –0.0558°C while 21.68 g of HgC12 (molar mass = 271) in 2000 g of water constitutesa solution with a freezing point of –0.0744°C. The Kf for water is 1.86 K – KgMol. About the state of ionization of these two solids in water it can be inferred that:

(1) Hg(NO3)2 and HgCl2 both are completely ionized

(2) Hg(NO3)2 is fully ionized but HgCl2 is fully unionized

(3) Hg(NO3)2 and HgCl2 both are completely unionized

(4) Hg(NO3)2 is fully unionized but HgCl2 is fully ionized  

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Concentration Term and Numericals
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15 g of methyl alcohol is dissolved in 35 g of water. The weight percentage of methyl alcohol in solution is

(1) 30%

(2) 50%

(3) 70%

(4) 75%

Concept Questions :-

Concentration Term and Numericals
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Sea water contains 5.8 × 10–3 g of dissolved oxygen per kilogram. The concentration of oxygen in parts per million is

(1) 5.8 ppm

(2) 58.5 ppm

(3) 0.58 ppm

(4) 0.05 ppm

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Concentration Term and Numericals
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A 500 gm toothpaste sample has 0.2 g fluoride concentration. The concentration of fluoride ions in terms of ppm level is [AIIMS 1994]

(1) 250 ppm

(2) 200 ppm

(3) 400 ppm

(4) 1000 ppm

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Concentration Term and Numericals
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Normality of a solution containing 9.8 g of H2SO4 in 250 cm3 of the solution is

[MP PMT 1995, 2003; CMC Vellore 1991; JIPMER 1991]

(1) 0.8 N

(2) 1 N

(3) 0.08 N

(4) 1.8 N

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Concentration Term and Numericals
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Amount of NaOH present in 200 ml of 0.5 N solution is 

(1) 40 g

(2) 4 g

(3) 0.4 g

(4) 4.4 g

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Concentration Term and Numericals
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