There are 11.56g of carbon in 30.0 g of sucrose.
The Chemical formula of sucrose is C12 H22 O11
Molecular mass of sucrose is given as 342.30 g / mol
Now to get the number of grams of Carbon in that molecule:
First, Carbon has 11 atoms in Sucrose
So, 11 x 12.01 g/mol = 132.0 g of Carbon
Next we find the percentage of Carbon contained in Sucrose by using
Mass of carbon / Mass of Sucrose x 100
132 g O / 342.30 g sucrose X 100 =38.56%
Since the percentage of Carbon in Sucrose is 38.56%,
then the mass of Carbon in 30g of sucrose is
38.56% x 30g =11.56g
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