Question

Calculate the molecular mass of FeSO4.7H2O

[Given Fe=56u, S= 32u, O=16 u, H=1u]​

Answer 1

ans.278

before all atoms molecular weight write and after add all molecular weight .

molecular weight- atomic weight of each element add . it is called molecular weight.as

Fe2O3= 56×2+16×3=112+48= 160 u

Answer 2

Answer:

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