Question

Calculate the Mass percentage of H,S and O in H2SO4

Answer 1

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$\bold\orange{Mass\:percent\:of\:element\:=\:\frac{Mass\:of\:element}{Mass\:of\:Compound}\:×\:100}$%

$Mass\:percent\:of\:Oxygen\:=\:\frac{4\:×\:15.999g}{98.08\:g\:{mol}^{-1}}\:×\:100$%

➠$\red{\boxed{Mass\:percent\:of\:Oxygen\:=\:65.24}}$

$Mass\:percent\:of\:Sulphur\:=\:\frac{32.06\:6</p><p>g}{98.08\:g\:{mol}^{-1}}\:×\:100$%

➠$\purple{\boxed{Mass\:percent\:of\:Sulphur\:=\:32.68}}$

$Mass\:percent\:of\:Hydrogen\:=\:\frac{2\:×\:1.00784\:g}{98.08\:g\:{mol}^{-1}}\:×\:100$%

➠$\pink{\boxed{Mass\:percent\:of\:Hydrogen\:=\:2.055}}$

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Answer 2

Moleccular Wt of Sulphuric Acid (H2 SO4 ) = 98.

☄️% composition of Hydrogen =

2/98 × 100 = 2.01 %

☄️% composition of Oxygen =

% composition of Oxygen = 64/98 × 100 = 65.3 %

☄️% composition of Sulphur=

32/98 × 100 = 32.5 %

Thank you ❤