Question

Complete and balance the following chemical equations: (a) Fe²⁺ + MnO₄⁻ + H⁺ → (b) MnO₄⁻ + H₂O + I⁻ →

Calculate the degree of dissociation (α) of acetic acid if its molar conductivity ($\Lambda_{m}$) is 39.05 Scm² mol⁻¹. Given $\Lambda^{\mathrm{o}}$(H⁺) = 349.6 Scm² mol⁻¹ and $\Lambda^{\mathrm{o}}$(CH₃COO⁻) = 40.9 Scm² mol⁻¹..

Define the following terms: (i) Ideal solution (ii) Molarity (M)

(i) State the law which helps to determine the limiting molar conductivity of weak electrolyte. (ii) Calculate limiting molar conductivity of CaSO₄ (limiting molar conductivity of calcium and sulphate ions are 119.0 and 160.0 Scm² mol⁻¹ respectively)

A 1.00 molar aqueous solution of trichloroacetic acid (CCl₃COOH) is heated to its boiling point. The solution has the boiling point of 100.18 °C. Determine the van’t Hoff factor for trichloroacetic acid. ($\mathbf{K}_{b}$ for water = 0.512 K kg mol⁻¹).

Why a mixture of Carbon disulphide and acetone shows positive deviation from Raoult’s law? What type of azeotrope is formed by this mixture?

State Raoult’s law for a solution containing nonvolatile solute. What type of deviation from Raoult’s law is shown by a solution of chloroform and acetone and why?