How can the percent composition of each element in a compound be determined?
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Answer:
The percent composition (by mass) of a compound can be calculated by dividing the mass of each element by the total mass of the compound.
Explanation:
The percent composition of a compond is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the total molar mass of the compound.
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Answered by
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Answer:
Here is an example of this using the compound C2OH4
You will first need to find the molar mass of the compound.
- C = 2 x 12 = 24
- O = 1 x 16 = 16
- H = 4 x 1 = 4
Total mass = 40 amu
To find the percent composition you divide each part by the whole and multiply by 100 to convert to a %.
- C = (24/44) x 100 = 54.5%
- O = (16/44) x 100 = 36.4%
- H = (4/44) x 100 = 9.1%
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