Question

Calculate the lattice enthalpy of sodium chloride. use a=1.748 and do= rna+ rcl- = 283 pm

Answer 1

latest salary of sodium chloride is 787 close joule per mole

Answer 2

Hey dear,

● Answer -
E = 752 kJ/mol

● Explaination -
Lattice energy of sodium chloride is calculated by formula -
E = NA.z+.z-.e^2(n-1) / 4πεrn

Substituting the values -
E = 6.022×10^23 × (+1) × (-1) × (1.6×10^-19)^2 (283-34.5) × 1.748 / (4π × 8.85×10^-12 × 2.83×10^-10)
E = 7.518×10^5 J/mol
E = 752 kJ/mol

Therefore, lattice energy of NaCl is 752 kJ/mol.

Hope this helps you...