Question

help me with this question ​

Answer 1

Answer:

◀Molecular Formula : Na2SO4.

◀Molecular Mass : 46 + 32 + 64 = 142 u.

Mass % of different elements -

1) Na = 46 / 142 × 100 = 32.3 %

2) S = 32 /142 × 100 = 22.53%

3) O = 64/142 ×100 = 45.07%

Answer 2

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= molecular formula:Na2SO4.

= molecular mass:46+32+64=142u.

mass% of different elements-

1)Na=46/142×100=32.3 %

2)S=32/142×100=22.53%

3)O=64/142×100=45.07%

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