Report 2 decimal places and appropriate units, the molar mass of steric acid (C17H35COOH).
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To calculate the molar mass of stearic acid (C17H35COOH), you need to find the sum of the atomic masses of all the atoms in the molecule. Here's how you can do it:
1. Start by identifying the number of each type of atom in the molecule. In stearic acid, there are:
- 17 carbon atoms (C17)
- 35 hydrogen atoms (H35)
- 2 oxygen atoms (O2)
2. Look up the atomic masses of each element from the periodic table. The atomic masses are:
- Carbon (C): 12.01 g/mol
- Hydrogen (H): 1.01 g/mol
- Oxygen (O): 16.00 g/mol
3. Multiply the number of each atom by its atomic mass and add them up to get the total molar mass.
Molar mass = (17 * 12.01 g/mol) + (35 * 1.01 g/mol) + (2 * 16.00 g/mol)
Molar mass = 204.34 g/mol + 35.35 g/mol + 32.00 g/mol
Molar mass = 271.69 g/mol
4. Round the molar mass to two decimal places and include the appropriate units (grams per mole).
Molar mass of stearic acid = 271.69 g/mol
So, the molar mass of stearic acid (C17H35COOH) is 271.69 g/mol.