Page 1 of 1
(b) 2500 kg of an aqueous solution containing 30% by weight of solids of Fe(NO³)2 is slowly cooled to T= 25° to form cry
Posted: Thu May 26, 2022 12:22 pm
by answerhappygod
- B 2500 Kg Of An Aqueous Solution Containing 30 By Weight Of Solids Of Fe No 2 Is Slowly Cooled To T 25 To Form Cry 1 (24.57 KiB) Viewed 16 times
(b) 2500 kg of an aqueous solution containing 30% by weight of solids of Fe(NO³)2 is slowly cooled to T= 25° to form crystals of Fe(NO₂)6H₂O. The solubility of crystals is 20% in mass ratio relative to solvent. The molecular mass of the anhydrous and hydrated salt is 179.8 kg kmol¹ and 287.84 kg kmol¹, respectively. Assume the evaporation of solvent to be negligible. (1) Calculate the amount of water of crystallisation. [5 marks] (i) Calculate the crystal yield. [3 marks] (iii) If the same operation is carried out by evaporating 10% of the solvent, re-calculate the parameters in (i) and (ii) and comment your answer. [7 marks]