ChemistryA quantity of 80.0 g of a salt (XY) of strong acid and weak base, which has crystal structure such that anions form Simple cubic lattice and cations occupy centre of the cube, is dissolved in water to form 2.0 L aqueous solution. At 298 K, the pH of the solution is found to be 5.0. Neglect degree of hydrolysis of ion relative to one. Given :Kb of XOH=4×10−5,NA=6×1023,3=1.732,PKw=14,100.4=2.5,log2=0.30Density of solution 1g/cc, Molal boiling point elevation constant is 0.5 K-Kg/mol. Radius of cation and anion are 160 pm and 186.4 pm respectively.
A quantity of 80.0 g of a salt (XY) of strong acid and weak base, which has crystal structure such that anions form Simple cubic lattice and cations occupy centre of the cube, is dissolved in water to form 2.0 L aqueous solution. At 298 K, the pH of the solution is found to be 5.0. Neglect degree of hydrolysis of ion relative to one.
Given:
Kb of XOH=4×10−5,NA=6×1023,3=1.732,PKw=14,100.4=2.5,log2=0.30
Density of solution 1g/cc, Molal boiling point elevation constant is 0.5 K-Kg/mol.
Radius of cation and anion are 160 pm and 186.4 pm respectively.
