find the mass in grams of a molecule of aspirin c9h8o4
9 times the MW of C plus 8 times the MW of H plus 4 times the MW of O. Add it all up
To find the mass of a molecule of aspirin (C9H8O4), you need to calculate the sum of the atomic masses of all the atoms in the molecule.
Step 1: Look up the atomic masses of each element in the periodic table:
C (Carbon) = 12.01 g/mol
H (Hydrogen) = 1.01 g/mol
O (Oxygen) = 16.00 g/mol
Step 2: Multiply the atomic mass of each element by its respective subscript in the chemical formula:
C9: 12.01 g/mol x 9 = 108.09 g/mol
H8: 1.01 g/mol x 8 = 8.08 g/mol
O4: 16.00 g/mol x 4 = 64.00 g/mol
Step 3: Add up the results from Step 2 to find the total mass of the molecule:
108.09 g/mol + 8.08 g/mol + 64.00 g/mol = 180.17 g/mol
Therefore, the mass of a molecule of aspirin (C9H8O4) is approximately 180.17 grams/mol.
To find the mass in grams of a molecule of aspirin (C9H8O4), you need to calculate the molar mass of the compound.
Here's how you can do it step by step:
1. Determine the atomic masses of each element in the molecular formula.
- Carbon (C) has an atomic mass of 12.01 g/mol.
- Hydrogen (H) has an atomic mass of 1.01 g/mol.
- Oxygen (O) has an atomic mass of 16.00 g/mol.
2. Multiply the atomic masses by the number of atoms of each element in the molecular formula.
- C: 9 atoms x 12.01 g/mol = 108.09 g/mol
- H: 8 atoms x 1.01 g/mol = 8.08 g/mol
- O: 4 atoms x 16.00 g/mol = 64.00 g/mol
3. Add up the individual molar masses of each element to get the molar mass of the molecule.
- Molar mass of C9H8O4 = 108.09 g/mol + 8.08 g/mol + 64.00 g/mol = 180.17 g/mol
Therefore, the mass of one molecule of aspirin (C9H8O4) is approximately 180.17 grams/mol.