Virtual Labs

Tools

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Estimation of molecular weight from freezing point depression

Choose difficulty:

Beginner

Intermediate

Advanced

The freezing point of a pure solvent is_______________ that of a dilute solution of a solute in the solvent.

a: less than Explanation

Explanation

b: greater than Explanation

Explanation

c: equal to Explanation

Explanation

d: not related to Explanation

Explanation

2.colligative property of a solution depends on the?

a: ratio of the number of solute particles to the numbr of solvent particles Explanation

Explanation

b: the pH of the solution Explanation

Explanation

c: density of the solute Explanation

Explanation

d: the molecular weight of the solute Explanation

Explanation

3.The correct relation between depression of freezing point and molality is?

a: ∆T_f= i X K_f × molality Explanation

Explanation

b: ∆T_f= K_f /molality Explanation

Explanation

c: ∆T_f= molality/K_f Explanation

Explanation

d: ∆T_f= molality/K_b Explanation

Explanation

4.Unit of cryoscopic constant is ?

a: Kg. mol. K Explanation

Explanation

b: K-1. Kg. mol Explanation

Explanation

c: K. Kg. mol-1 Explanation

Explanation

d: Kg.mol-1. K-1 constant Explanation

Explanation

5.The definition of molality for a solution is ?

a: Number of moles of solute dissolved in 1 Kg of the solvent Explanation

Explanation

b: Number of moles of solute dissolved in 1 litre of the solvent Explanation

Explanation

c: Number of gram equivalent of solute dissolved in 1 litre of the solvent Explanation

Explanation

d: Number of grams of solute dissolved in 1 kg of solvent Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)