Question

Freezing point of 0.1 molar solution of nh4cl is found to be 0.324

Answer 1

Explanation:

· NH4Cl is a salt of weak base NH4OH and strong acid HCl. We need to have the value of Kb (base dissociation constant) of 0.01 M NH4OH for the calculation of the pH of 0.01 M NH4Cl. ... What is the pH of the solution obtained by mixing 5ml of 0.1M NH4OH with 250ml of 0.1M NH4CL?

Answer 2

Freezing point of 0.1 molar solution of nh4cl is found to be 0.324

Explanation:

• NH4Cl is a salt of weak base NH4OH and strong acid HCl.
• We need to have the value of Kb (base dissociation constant) of 0.01 M NH4OH for the calculation of the pH of 0.01 M NH4Cl.
• The solute lowers the solvent's vapour pressure, lowering the freezing point of the solution in comparison to the solvent.
• The difference in temperature between the freezing point of the pure solvent and the freezing point of the solution is known as the freezing point depression.
• When a pure solvent freezes, the intermolecular forces that operate between the molecules become permanent, resulting in more ordered particles.
• The hexagonally-shaped network of molecules that characterizes the structure of ice is formed by hydrogen bonding in the case of water.