Solutions questions
1397 published questions with worked solutions.
- The osmotic pressure of a dilute solution is 7 × 10⁵ Pa at 273 K. Osmotic pressure of the same solution at 283 K is ______ × 10⁴...
- The solution from the following with highest depression in freezing point/lowest freezing point is
- What happens to freezing point of benzene when small quantity of naphthalene is added to benzene?
- The mass of sodium acetate (CH₃COONa) required to prepare 250 mL of 0.35 M aqueous solution is ________ g. (Molar mass of...
- Identify the mixture that shows positive deviations from Raoult's law.
- Given P_A^0 = 21kPa, P_B^0 = 18kPa. An Ideal solution is prepared by mixing 1 mol A and 2 mol B. The total vapour pressure of the...
- AB_2 is 10% dissociated in water to A^ 2+ and B^-. The boiling point of a 10.0 molal aqueous solution of AB_2 is ________°C....
- A 1 molal K_4Fe(CN)_6 solution has a degree of dissociation of 0.4. Its boiling point is equal to that of another solution which...
- The mole fraction of a solute in a 100 molal aqueous solution —— 10^ -2 (Round off to the Nearest Integer) [Given : Atomic...
- The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubility of oxygen in...
- A solute dimerizes in water. The boiling point of a 2 molar solution of A is 100.52ºC. The percentage association of A is_____....
- 2 molal solution of a weak acid HA has a freezing point of 3.885ºC. The degree of dissociation of this acid is —— 10^ -3 . (Round...
- The vapour pressures of A and B at 25°C are 90 mm Hg and 15 mm Hg respectively. If A and B are mixed such that the mole fraction...
- At 20°C, the vapour pressure of benzene is 70 torr and that of methyl benzene is 20 torr. The mole fraction of benzene in the...
- The water having more dissolved O_2 is :
- C_6H_6 freezes at 5.5°C. The temperature at which a solution 10 g of C_4H_ 10 in 200 g of C_6H_6 freeze is ________°C. (The molal...
- The vapour pressure of two liquids P and Q are 80 and 60 torr, respectively. The total vapour pressure of solution obtained by...
- A solution of urea (mol. mass 56g mol^ -1 ) boils at 100.18°C at the atmospheric pressure. If k_ f and k_ b for water are 1.86...
- A solution has a 1 : 4 mole ratio of pentane to hexane. The vapour pressure of the pure hydrocarbons at 20°C are 440 mm of Hg for...
- The mole fraction of the solute in one molal aqueous solution is :
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