To calculate the molar mass (or formula mass) of a compound, you need to find the sum of the atomic masses of all the atoms in the compound. In the case of \(C_2H_5F\):
- Carbon (C) has an atomic mass of approximately 12.01 g/mol.
- Hydrogen (H) has an atomic mass of approximately 1.01 g/mol.
- Fluorine (F) has an atomic mass of approximately 18.998 g/mol.
Now, calculate the molar mass of \(C_2H_5F\):
\[ \text{Molar mass} = 2 \times \text{atomic mass of carbon} + 5 \times \text{atomic mass of hydrogen} + 1 \times \text{atomic mass of fluorine} \]
\[ = 2 \times 12.01 \, \text{g/mol} + 5 \times 1.01 \, \text{g/mol} + 1 \times 18.998 \, \text{g/mol} \]
\[ = 24.02 \, \text{g/mol} + 5.05 \, \text{g/mol} + 18.998 \, \text{g/mol} \]
\[ \approx 48.068 \, \text{g/mol} \]
So, the molar mass of \(C_2H_5F\) is approximately \(48.068 \, \text{g/mol}\).