- [Hard]The vapour pressure of pure water at 25°C is 23.8 mmHg. When 18 g of glucose (C₆H₁₂O₆, molar mass = 180 g mol⁻¹) is dissolved in 178.2 g of water, the...
- [Medium]When 1.80 g of a non-volatile, non-electrolyte solute is dissolved in 90 g of benzene (Kf = 5.12 K kg mol⁻¹), the freezing point is lowered by 0.80 K....
- [Easy]The molal elevation constant (Kb) of water is 0.52 K kg mol⁻¹. The boiling point elevation when 6.0 g of urea (molar mass = 60 g mol⁻¹) is dissolved i...
- [Hard]Reverse osmosis is used for water desalination. Which of the following statements correctly describes the principle of reverse osmosis?...
- [Medium]A solution is prepared by dissolving 34.2 g of sucrose (C₁₂H₂₂O₁₁, molar mass = 342 g mol⁻¹) in 500 mL of water. Assuming the density of the resulting...
- [Easy]A solution that shows a large positive deviation from Raoult's law forms:...
- [Easy]An ideal binary liquid solution is prepared by mixing 3 mol of liquid A (vapour pressure 100 mmHg) with 2 mol of liquid B (vapour pressure 150 mmHg) a...
- [Easy]A 0.025 M aqueous solution of a non-electrolyte solute exerts an osmotic pressure of 0.615 atm at 300 K. The value of the gas constant R used in the c...
- [Medium]A 0.1 m aqueous solution of BaCl₂ shows a depression of freezing point of 0.480 K. If Kf for water is 1.86 K kg mol⁻¹, the van't Hoff factor (i) for B...
- [Medium]The Henry's law constant for oxygen dissolved in water at 298 K is 1.3 × 10³ atm. The partial pressure of oxygen in the atmosphere is 0.21 atm. The mo...
- [Medium]Which aqueous solute produces greatest freezing point depression per mole?...
- [Easy]Two solutions with identical osmotic pressure at same temperature are termed:...
- [Easy]Which parameter affects boiling point elevation (ΔTb) directly?...
- [Easy]Nernst distribution law applies best to solute distributing between:...
- [Hard]Which solute has van't Hoff factor i ≈ 3 in dilute aqueous solution?...
- [Medium]Henry's Law constant (kH) for O2 increases with temperature. Solubility of O2 in water will:...
- [Easy]Doubling partial pressure of a gas above liquid (Henry's law region) will:...
- [Medium]0.100 kg water contains 0.010 mol glucose (i=1). Kf(water)=1.86 K kg mol−¹. ΔTf is:...
- [Hard]Addition of salt reduces solubility of non-electrolyte due to:...
- [Easy]Osmotic pressure (π) of a dilute solution relates to concentration via:...
- [Easy]Which concentration unit varies with temperature?...
- [Medium]Minimum boiling azeotrope shows which deviation?...
- [Easy]An ideal binary solution has components A and B. Total vapor pressure is given by:...
- [Easy]In a solution of ethanol (moles 2.0) and water (moles 8.0), mole fraction of ethanol is:...
- [Medium]Positive deviation from Raoult's Law occurs when intermolecular interactions in mixture are:...