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
How is the sign of ΔmixH related to positive deviations from Raoult’s law?
Suggest the most important type of intermolecular attractive interaction in the following pair.
acetonitrile (CH3CN) and acetone (C3H6O)
Which of the following concentration terms is/are independent of temperature
Which of the following is an example of a solid solution?
Dissociation constant and molar conductance of an acetic acid solution are 1.78 × 10–5 mol L–1 and 48.15 S cm–2 mol–1 respectively. The conductivity of the solution is (considering molar conductance at infinite dilution is 390.5 S cm–2 mol–1)
On increase in pressure for dissociation ofN2O4 into NO2, equilibrium shift towards
If liquids A and B form an ideal solution, the ______.
Assertion (A): The enthalpy of mixing Δmix H is equal to zero for an ideal solution.
Reason (R): For an ideal solution the interaction between solute and solvent molecules is stronger than the interactions between solute-solute or solvent-solvent molecules.
Suggest the most important type of intermolecular attractive interaction in the following pair.
NaClO4 and water
Suggest the most important type of intermolecular attractive interaction in the following pair.
Methanol and acetone
