- [Medium]50 mL of 2 M H₂SO₄ is diluted to 200 mL. If H₂SO₄ is a diprotic acid, what is the normality of the resulting solution?...
- [Medium]Two volatile liquids A (vapour pressure 400 mmHg) and B (vapour pressure 100 mmHg) are mixed in equal molar proportions to form an ideal solution. Wha...
- [Easy]Drinking water is considered safe when fluoride concentration does not exceed 1.5 ppm by mass. What is the maximum amount of fluoride allowed in 2.0 k...
- [Medium]Benzoic acid dissolved in benzene shows an abnormally high molar mass when measured by colligative property methods. Which phenomenon explains this, a...
- [Easy]A mixture contains 36 g of water and 92 g of ethanol (molar mass 46 g/mol). What is the mole fraction of ethanol in this mixture?...
- [Medium]A mixture of two miscible liquids that boils at a constant composition and temperature, lower than either pure component's boiling point, is termed wh...
- [Medium]For a solid solute dissolving in a liquid solvent, which of the following statements correctly describes the effect of temperature on solubility, and ...
- [Easy]The osmotic pressure of a 0.02 M solution of a non-electrolyte at 300 K is closest to which value? (Take R = 0.082 L·atm·K⁻¹·mol⁻¹)...
- [Medium]An aqueous solution of an unknown non-electrolyte solute has a freezing point of −0.744°C. Given K_f for water is 1.86 K·kg/mol and 12.0 g of the solu...
- [Medium]Which of the following pairs of liquids is expected to show a positive deviation from Raoult's law and why?...
- [Easy]What is the boiling point of a solution containing 6 g of a non-volatile, non-electrolyte solute dissolved in 100 g of water, given the molar mass of ...
- [Easy]A solution is prepared by dissolving 18 g of glucose (molar mass 180 g/mol) in 90 g of water at 25°C. If the vapour pressure of pure water at 25°C is ...
- [Easy]Two solutions of sucrose and urea have the same osmotic pressure at 298 K. If 10 g of sucrose (molar mass 342 g/mol) is dissolved per litre, what mass...
- [Easy]Henry's law constant for CO₂ dissolved in water at 298 K is 1.67 × 10⁸ Pa. What is the mole fraction of CO₂ in water when the partial pressure of CO₂ ...
- [Easy]Calculate the molality of a 2.5 M aqueous solution of urea (molar mass 60 g/mol) if the density of the solution is 1.05 g/mL....
- [Easy]Reverse osmosis is used for:...
- [Hard]A solution has molarity 1 M and density 1.05 g/mL. If the molar mass of solute is 60 g/mol, the molality is approximately:...
- [Medium]Iodine distributes itself between water and CCl₄ with a distribution coefficient of 85. If 1 g of I₂ is shaken with 100 mL each of water and CCl₄, the...
- [Easy]The ebullioscopic constant depends on:...
- [Easy]According to Raoult's law, the relative lowering of vapor pressure is equal to:...
- [Medium]When acetic acid is dissolved in benzene, the observed molar mass is approximately twice the expected value. This is due to:...
- [Easy]Which of the following pairs forms an ideal solution?...
- [Easy]The solubility of most solid substances in water increases with:...
- [Easy]The Van't Hoff factor (i) for NaCl in dilute aqueous solution is approximately:...
- [Medium]An azeotropic mixture of ethanol and water boils at:...
- [Easy]A solution of urea (molar mass = 60 g/mol) in water freezes at −0.372°C. If Kf for water is 1.86 K kg mol⁻¹, the molality of the solution is:...
- [Medium]The vapor pressure of pure benzene at 298 K is 100 mm Hg. When 2.0 g of a non-volatile solute is dissolved in 78 g of benzene, the vapor pressure drop...
- [Easy]The boiling point elevation constant (Kb) for water is 0.52 K kg mol⁻¹. What is the boiling point of a solution containing 18 g of glucose (C₆H₁₂O₆) i...
- [Hard]A solution containing 0.5 g of a protein in 100 mL of solution has an osmotic pressure of 1.23 × 10⁻³ atm at 300 K. The molar mass of the protein is: ...
- [Easy]According to Henry's law, the solubility of a gas in a liquid is:...