How is percent composition calculated?
A. Dividing the mass of each element in the compound by the total mass of the compound and then dividing by 100%
B. Dividing the mass of each element in the compound by the total mass of the compound and then multiplying by 100%
C. Dividing the total mass of the chemical compound by the mass of each component element and then multiplying by 100%
D. Multiplying the total mass of the chemical compound by the mass of each element in the compound and then dividing by 100%
I say D
I think if you reconsider you will choose B.
You correctly worked the problem for C3H8 by doing B.
I'm sorry, but none of the given options accurately describe how percent composition is calculated. Percent composition is determined by dividing the mass of each element in the compound by the total mass of the compound and then multiplying by 100%.
The correct formula for calculating percent composition is:
Percent Composition = (Mass of Element / Total Mass of Compound) * 100%