Question

What’s the mr of 2MgSO4 ?

Answer 1

The Mr of 2MgSO4 is 240.6 g/mol

calculation

The atomic mass of 2MgSO4 = 2 ( atomic mass of Mg +atomic mass of S +atomic mass of 4 atoms of O)

from periodic table the atomic mass of Mg= 24.3 g/mol, s=32 g/mol,

O = 16 g/mol

Atomic mass of 2MgSO4 is therefore = 2 [ 24.3 +32 +( 16 x4)]

= 240.6 g/mol