The percent composition of carbon in C6H12O6 is: 25% C 40% C 7% C None of the above
Chemistry
al0fairaGamb
Question
The percent composition of carbon in C6H12O6 is:
25% C
40% C
7% C
None of the above
25% C
40% C
7% C
None of the above
1 Answer

1. User Answers Bea1111
To calculate percent composition, you first need to find the molar mass of C (carbon), H (hydrogen) and O (oxygen).
C is 12.01
H is 1.00
O is 16
Then multiply each by the number of atoms of each element in the formula (the number that comes after each element in the equation for example C6 means 6 carbon atoms.
C: 12.01 x 6= 72.06
H: 1x12= 12
O: 16x6= 96
Then add them up.
72.06+ 12+ 96= 180.06
Now find the percent composition of carbon.
72.06/ 180.06 x 100= 40.01%
So the answer is C 40%.