Answer:
0.3991
Explanation:
- no. of moles = mass/molar mass.
so lets get the molar mass of MgCl2
(Mg=24.305 and Cl=35.453) so the molar mass of MgCl2= 24.305+(2*35.453)
molar mass of MgCl2= 95.211
- now lets get the no of moles:
no of moles=38g/95.211=0.3991
