Question

calculate the no of moles of 20grams of magnesium sulfate​

Answer 1

Answer:

1/6 Moles

Explanation:

number of moles = wight of compound / molecular weight

molecular weight of magnesium sulfate​ (MgSO4) =120 gm

no of moles = 20/120 = 1/6 moles

HOPE IT IS HELPFUL

Answer 2

Explanation:

molecular formula of magnesium sulphate=MgSO4

its molecular weight = 24+32+64

=120 gm

no. of moles =total weight /molecular weight

=20/120

=1/6

=0.16moles

hope this helps you