MCQs on Freezing Point of the Solvent
- Which one of the following gases has the lowest value of Henry’s law constant?
- If 10ml of 0.1M aqueous solution of NaCl is divided into 1000 drops of equal volume. What will be the concentration of one drop?
- A 0.5 molal solution of ethylene glycol in water is used as a coolant in a car. If the freezing point constant of water be 1.86oC per mole, the mixture shall freeze at
- Which statement is true for a solution of 0.020M H2SO3?
- 2 litre of the solution contains 0.020 mole of SO42-
- 2 litre of the solution contains 0.080 mole of H3O+
- 1 litre of the solution contains 0.020 mole of H3O+
- None of these
- A 500g toothpaste sample has 0.2g fluoride concentration. What is the concentration of F in terms of ppm level?
- If at a certain temperature the vapour pressure of pure water is 25 mm Hg and that of a very dilute aqueous urea solution is 24.5mm Hg, the molality of the solution is
- Which of the following 0.10m aqueous solutions will have the lowest freezing point?
- The amount of urea to be dissolved in 500 cc of water (K = 1.86oC mol-1) to produce a depression of 0.186oC in the freezing point is
- The empirical formula of a nonelectrolyte is CH2O. A solution containing 6g of the compound exerts the same osmotic pressure as that of 0.05M glucose solution at the same temperature, The molecular formula of the compound is
- The molar mass of the solute sodium hydroxide obtained from the measurement of the osmotic pressure of its aqueous solution at 27oC is 25gmol-1. Therefore its ionization solution at 27oC is 25 g mol-1. Therefore its ionization percentage in this solution is