1. Identify the Chemical Formula:
* 1-pentanoic acid has the formula CH₃(CH₂)₃COOH
2. Determine the Atomic Masses:
* Carbon (C): 12.01 g/mol
* Hydrogen (H): 1.01 g/mol
* Oxygen (O): 16.00 g/mol
3. Calculate the Total Molar Mass:
* Carbon: 5 atoms * 12.01 g/mol = 60.05 g/mol
* Hydrogen: 10 atoms * 1.01 g/mol = 10.10 g/mol
* Oxygen: 2 atoms * 16.00 g/mol = 32.00 g/mol
4. Add the Atomic Masses Together:
* Total molar mass = 60.05 g/mol + 10.10 g/mol + 32.00 g/mol = 102.15 g/mol
Therefore, the molar mass of 1-pentanoic acid is 102.15 g/mol.
