A solution of acetone in ethanol is-

Three solutions are prepared by adding 'w' gm of 'A' into 1kg of water, 'w' gm of 'B' into another 1 kg of water and 'w' gm of 'C' in another 1 kg of water (A, B, C are non electrolytic). Dry air is passed from these solutions in sequence (A → B → C). The loss in weight of solution A was found to be 2gm while solution B gained 0.5 gm and solution C lost 1 gm. Then the relation between molar masses of A, B and C is :

How many mili moles of sucrose should be dissolved in 500 gms of water so as to get a solution which has a difference of 103.57°C between boiling point and freezing point.

(K₁ = 1.86 K Kg mol⁻¹, K_b = 0.52 K Kg mo1⁻¹)

The molar heat of vapourization of toluene is AHv. If its vapour pressure at 315 K is 60 torr & that at 356K is300 torr then AHv = ? (log 2 = 0.3)

Relative decrease in vapour pressure of an aqueous solution containing 2 moles [Cu(NH₃)₃Cl) Cl in 3 moles H₂O is 0.50. On reaction with AgNO₃, this solution will form (assuming no change in degree of ionisation of substance on adding AgNO₃)

Which of the following has been arranged in order of decreasing freezing point?

A solution of x moles of sucrose in 100 grams of water freezes at −0.2°C. As ice separated the freezing point goes down to 0.25°C. How many grams of ice would have separated?

An ideal mixture of liquids A and B with 2 moles of A and 2 moles of B has a total vapour pressure of 1 atm at a certain temperature. Another mixture with 1 mole of A and 3 moles of B has a vapour pressure greater than 1 atm. But if 4 moles of C are added to the second mixture, the vapour pressure comes down to 1 atm. Vapour pressure of C, P_c° = 0.8 atm. Calculate the vapour pressures of pure A and pure B.

A sample of air is saturated with benzene (vapor pressure = 100 mm Hg at 298 K) at 298K, 750mm Hgpressure. If it is isothermally compressed to one third of its initial volume, the final pressure of the system is

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

Consider equimolal aqueous solutions of NaHSO₄ and NaCl with $∆$T_b and $∆T\text{'}$_b as their respective boiling point elevations. The value of $\underset{x\to 0}{\lim }\frac{\Delta T_b}{\Delta T_b^{\text{'}}}$ will be :

The vapor pressures of benzene, toluene and a xylene are 75 Torr, 22 Torr and 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.

Osmotic pressure is 0.0821 atm at a temperature of 300 K. Find concentration in mole/litre [Roorkee 1990]

The osmotic pressure of 5% (mass-volume) solution of cane sugar at 150°C (mol. mass of sugar = 342) is- 

3.24 g of Hg(NO₃)₂ (molar mass = 324) dissolved in 1000 g of water constitutes a solution having a freezing point of –0.0558°C while 21.68 g of HgCl₂ (molar mass = 271) in 2000 g of water constitutes a solution with a freezing point of –0.0744°C. The K_f for water is 1.86 $\frac{\text{K\hspace{0.17em}– Kg}}{\text{Mol}}$. About the state of ionization of these two solids in water it can be inferred that:

15 g of methyl alcohol is dissolved in 35 g of water. The weight percentage of methyl alcohol in solution is

The seawater sample contains 5.8 × 10^–3 g of dissolved oxygen per kilogram of the sample. The concentration of oxygen in parts per million is-

A 500 gm toothpaste sample has 0.2 g fluoride concentration. The concentration of fluoride ions in terms of ppm level is

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]

Amount of NaOH present in 200 ml of 0.5 N solution is 

50 ml of $10N{H}_{2}S{O}_4,25ml$ of 12 N HCl and 40 ml of $5NHN{O}_3$ were mixed together and the volume of the mixture was made 1000 ml by adding water. The normality of the resulting solution will be 

100 ml of 0.3 N HCl is mixed with 200 ml of 0.6 N H₂SO₄. The final normality of the resulting solution will be

An aqueous solution of 6.3 g oxalic acid dihydrate is made up to 250 ml. The volume of 0.1 N NaOH required to completely neutralize 10 ml of this solution is [IIT 2001; CPMT 1986]

10.6 g of Na₂CO₃ was exactly neutralised by 100 ml of H₂SO₄ solution. Its normality is

The molarity of pure water (d = 1 g/l) is -

Equal volumes of $0.1\mathrm{M}{\mathrm{AgNO}}_3$ and 0.2 M NaCl are mixed. The concentration of ${\mathrm{NO}}_3^{-}$ ions in the mixture will be 

The molarity of H₂SO₄ solution that has a density of 1.84 g/cc at 35°C and contains 98% by weight is

Amount of oxalic acid ${\left(\mathrm{COOH}\right)}_2.2{\mathrm{H}}_2\mathrm{O}$ in grams that is required to obtain 250 ml of a semi-molar solution is 

Volume of 10 M HCl should be diluted with water to prepare 2.00 L of 5 M HCl is 

The volume of 95% H₂SO₄ (density = 1.85 g cm^–3) needed to prepare 100 cm³ of 15% solution of H₂SO₄ (density = 1.10 g cm³) will be