Answer:
42.11 g
Explanation:
Mass of the hydrated salt = 60 g
The moles of the hydrated salt is :
Amount = 60 g
Molar mass of [tex]LiCl.H_2O[/tex] = 60.4093 g/mol
The formula for the calculation of moles is shown below:
[tex]moles=\frac {Mass\ taken}{Molar\ mass}[/tex]
Thus, moles are:
[tex]moles=\frac{60\ g}{60.4093\ g/mol}[/tex]
[tex]moles= 0.9932\ mol[/tex]
After heating only LiCl remains in the crucible. So,
Moles of LiCl = 0.9932 moles
Molar mass of [tex]LiCl[/tex] = 42.394 g/mol
The formula for the calculation of moles is shown below:
[tex]moles = \frac{Mass\ taken}{Molar\ mass}[/tex]
Also, mass is
[tex]Mass=moles\times Molar\ mass[/tex]
[tex]Mass=0.9932\times 42.394[/tex]
Total mass of LiCl remaining in the crucible = 42.11 g
