Advertisements
Advertisements
Question
The mass of a non – volatile solute (molar mass 80 g mol-1) should be dissolved in 92g of toluene to reduce its vapour pressure to 90% ______.
Options
10 g
20 g
9.2 g
8 g
Advertisements
Solution
The mass of a non – volatile solute (molar mass 80 g mol-1) should be dissolved in 92g of toluene to reduce its vapour pressure to 90% 8 g.
APPEARS IN
RELATED QUESTIONS
Which of the following concentration terms is/are independent of temperature
The KH for the solution of oxygen dissolved in water is 4 × 104 atm at a given temperature. If the partial pressure of oxygen in air is 0.4 atm, the mole fraction of oxygen in solution is ______.
Concentration terms such as mass percentage, ppm, mole fraction and molality are independent of temperature, however molarity is a function of temperature. Explain.
Assertion: Molarity of a solution in liquid state changes with temperature.
Reason: The volume of a solution changes with change in temperature.
The pH of a solution of hydrochloric acid is 1.5. Calculate the concentration of the acid.
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
Lowering of vapour pressure of an aqueous solution of a non-volatile, non-electrolyte 1 molal aqueous solution at 100°C is ______.
If liquids A and B form an ideal solution, the ______.
1 mole of liquid A and 2 moles of liquid B make a solution having a total vapour pressure of 40 torr. The vapour pressure of pure A and pure B are 45 torr and 30 torr, respectively. The above solution ______.
Suggest the most important type of intermolecular attractive interaction in the following pair:
I2 and CCl4
