Taking into account the definition od percentage composition, the percent composition of fluorine in this sample is 22.78%.
The Percentage Composition is a measure of the amount of mass that an element occupies in a compound and indicates the percentage by mass of each element that is part of a compound.
To calculate the percentage of composition, it is necessary to know the mass of the element in a known mass of the compound.
In this case, you know that a 15.8 g sample contains 3.6 g of F, 4.9 g of H, and 7.3 g of C.
Dividing the mass amount of F present in the compound by the mass of the sample and multiplying it by 100 to obtain a percentage value, the percentage composition of fluorine is obtained:
[tex]percentage composition of fluorine=\frac{3.6 grams}{15.8 grams} x100[/tex]
percentage composition of fluorine= 22.78%
Finally, the percent composition of fluorine in this sample is 22.78%.
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