Question

calculate the mass percentage of different element present in Na2So4
$solve \: it \: as \: seperately$
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Answer 1

Answer:

Question 2

Calculate the mass percent of different elements present in sodium sulphate (Na2SO4).

Answer

The molecular formula of sodium sulphate is (Na2SO4).

Molar mass = atomic mass of Na(23) + atomic mass of S(32.066) + atomic mass of O(16)

Molar mass of (Na2SO4) = [(2 × 23.0) + (32.066) + 4 (16.00)] = 142.066