What is the percent composition of carbon in glucose (c6h12o6)? (the molar mass of c = 12.01, h = 1.0079 and o = 16.00.)
3.36%
6.71%
15.20%
40%
53.29%

Answer : The correct option is, 40 %

Explanation: Given,

Molar mass of C = 12.01 g/mole

Molar mass of H = 1.0079 g/mole

Molar mass of O = 16.00 g/mole

First we have to calculate the molar mass of glucose.

Molar mass of glucose =

Now we have to calculate the percent composition of carbon in glucose.

As we now that there are 6 number of carbon atoms, 12 number of hydrogen atoms and 6 number of oxygen atoms.

The mass of carbon =

Formula used :

Now put all the given values in this formula, we get the percent composition of carbon in glucose.

Therefore, the percent composition of carbon in glucose is, 40 %

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