When CuSO_4 is added to a solution of ammonia | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) When $CuSO_4$ is added to an aqueous ammonia solution,it forms a complex ion $[Cu(NH_3)_4]^{2+}$.This reaction reduces the total number of solute

Vedclass · Accepted Answer

Freezing point is raised

Vedclass · Answer

(B) When $CuSO_4$ is added to an aqueous ammonia solution,it forms a complex ion $[Cu(NH_3)_4]^{2+}$.This reaction reduces the total number of solute particles in the solution.According to colligative properties,the depression in freezing point $(\Delta T_f = i 	imes K_f 	imes m)$ and elevation in boiling point $(\Delta T_b = i 	imes K_b 	imes m)$ are directly proportional to the van 't Hoff factor $(i)$.Since the number of particles decreases,the van 't Hoff factor $(i)$ decreases.Consequently,the freezing point of the solution increases (less depression) and the boiling point decreases (less elevation).

When $CuSO_4$ is added to a solution of ammonia,what happens to the boiling point and freezing point of the solution?

Similar Questions

Assertion : The water pouch of an instant cold pack for treating athletic injuries breaks when squeezed and $NH_4NO_3$ dissolves,lowering the temperature.
Reason : Addition of a non-volatile solute into a solvent results in the depression of the freezing point of the solvent.

What happens to the boiling point and freezing point of water when sugar is added to it?

Identify the colligative property from the following options.

Colligative properties are used for the determination of:

What is the effect of the addition of sugar on the boiling and freezing points of water?

Vedclass Test Series

Exam Paper Generator

Online Exam Module