Question

find molecular mass Na2 SO4.10 H2O​

Answer 1

Hey mate......

Here's your molecular mass of Na2SO4. 10H2O

Na2SO4

2*(Na) + S + 4(O) = 2*(23 g/mol) + (32) + 4(16) = 119 g/mol

and the molar mass of 10H20...is

10+2(H) + 0 = 10+2(1)+16 =28 g/mol

Hope this will be helpful to you mate......