Household sugar sucrose has the molecular formula c12h22o11. what is the carbon in sucrose by mass

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08-05-2018
Chemistry

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Household sugar sucrose has the molecular formula c12h22o11. what is the carbon in sucrose by mass

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Answer:
%age of Carbon is 42.10 %.

Explanation:
In order to find the %age of elements present in a molecule we will use following formula,

%age of Element = (Mass of Element / Mass of Molecule) × 100

The molecular mass of Sucrose is.

= (12)12 + (1)22 + (16)11
Where;
12 = Atomic mass of Carbon

1 = Atomic Mass of Hydrogen

16 = Atomic Mass of Oxygen

= 144 + 22 + 176

= 342 g/mol
%age of C;
= (144 / 342) ×100 = 42.10 %

%age of H;
= (22 / 342) ×100 = 06.42 %

%age of O;
= (176 / 342) ×100 = 51.46 %