Related Questions
A solute exhibits an observed molar mass twice its normal molar mass in a particular solvent. What is the van't Hoff factor (i) for this solute in that solvent?
1
2
0.5
4
Acetic acid on dissolution in benzene will show :
Two times of its normal molecular weight
Its normal molecular weight
Half of its normal molecular weight
None of the above
The van’t Hoff factor for a compound which undergoes dissociation in one solvent and association in other solvent is respectively
Less than one and greater than one
Less than one and less than one
Greater than one and less than one
Greater than one and greater than one
The van’t Hoff factor for a compound which undergoes dissociation in one solvent and association in other solvent is respectively
Less than one and greater than one
Less than one and less than one
Greater than one and less than one
Greater than one and greater than one
The experimental molecular weight of an electrolyte will always be less than its calculated value because the value of van’t Hoff factor, ‘i’ is :
Less than one
Greater than one
One
Zero
The experimental molar mass of a solute is found to be lower than its theoretical value. This indicates:
Association of the solute in the solution.
Dissociation of the solute in the solution.
The solute is insoluble in the solvent.
The solute is a non-electrolyte.
If the observed osmotic pressure of a 0.1 M solution of is 3 times the expected value for a non-electrolyte at the same temperature, what is the van't Hoff factor (i)?
1
2
3
4
Which of the following is incorrect?
0.1 m sucrose
0.1 m urea
0.1 m ethanol
0.1 m glucose
0.2 molal aqueous solution of a monobasic acid is 60% ionised. If Kb for water is then the boiling point of the solution will be