How many moles of LiCl

are in 250g of LiCl

Moles are amount of substance. Molar mass is the mass of 1 mol of substance.

Molar mass of LiCl is the sum of molar masses of the individual elements.

molar mass of Li - 6.9 g/mol and Cl - 35.45 g/mol

molar mass of LiCl - 6.9 + 35.45 = 42.35

therefore molar mass of LiCl - 42.35 g/mol

number of moles of LiCl = mass present / molar mass of LiCl

number of LiCl moles = 250 g / 42.35 g/mol = 5.90 mol

5.90 moles of LiCl