9.65 C of electric current is passed through fused anhydrous magnesium chloride. The magnesium metal thus, obtained is completely converted into a Grignard reagent. The number of moles of the Grignard reagent obtained is

Step-by-step solution

MgCl ₂ Mg ²⁺+2 Cl ⁻ Mg ²⁺+2 e ⁻ 1 ~mol Mg (at cathode) 2 ~F (2 96500 C ) deposits Mg =1 ~mol 9.65 C (2 96500 C ) deposits Mg =1 ~mol = 1 9.65 2 96500 =5 10⁻⁵ ~mol In order to prepare Grignard reagent, one mole of Mg is used per mole of reagent obtained. Thus, by 5 10⁻⁵ ~mol Mg , 5 10⁻⁵ mole of Grignard reagent are obtained.