revivalbead revivalbead

24-02-2021
Chemistry

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What is the percent composition by mass of suifur in Na2SO?
(Molar mass of Na2SO.= 142 g/mol)

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Respuesta :

kathrynlizzy kathrynlizzy

02-03-2021

Answer:

22.5%

Explanation

% composition = Molar mass of S

------------------------ x 100

Molar mass of Na2SO4

= 32.065

------------ x 100

142

=0.225 x 100

= 22.5%

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