Question

Calculate the percentage of each element in the compound MgSO4

Answer 1

Answer:

We have given compound MgSO₄ :

Molar mass of MgSO₄ = ( 24 + 32 + 64 ) = 120 g / mol.

a). % composition of Mg in MgSO₄ :  

= > ( 24 / 120 ) × 100 %

= > ( 1 / 5 ) × 100 %

= > 20 %

b). % composition of S in MgSO₄ :  

= > ( 32 / 120 ) × 100 %

= > 0.2666 × 100 %

= > 26.67 %

c). % composition of O in MgSO₄ :  

= > ( 64 / 120 ) × 100 %

= > 0.5333 × 100 %

= > 53.33 %

Hence we get required answer.

Answer 2

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