CF4, also known as carbon tetrafluoride, is a chemical compound composed of one carbon atom and four fluorine atoms. To determine the percent composition of this compound, we first need to calculate the molar mass of CF4.
The molar mass of CF4 can be calculated as follows:
- Carbon (C): 1 atom × 12.01 g/mol = 12.01 g/mol
- Fluorine (F): 4 atoms × 19.00 g/mol = 76.00 g/mol
Adding these together, the total molar mass of CF4 is:
12.01 g/mol (C) + 76.00 g/mol (F) = 88.01 g/mol
Now we can calculate the percent composition of each element:
- Percent Composition of Carbon:
= (Molar mass of C / Molar mass of CF4) × 100
= (12.01 g/mol / 88.01 g/mol) × 100 ≈ 13.64% - Percent Composition of Fluorine:
= (Molar mass of F / Molar mass of CF4) × 100
= (76.00 g/mol / 88.01 g/mol) × 100 ≈ 86.36%
In summary, the percent composition of CF4 is approximately 13.64% carbon and 86.36% fluorine.