To calculate moles from grams, you can use the following formula:
Formula
moles=mass in gramsmolar mass (g/mol)\text{moles}=\frac{\text{mass in grams}}{\text{molar mass (g/mol)}}moles=molar mass (g/mol)mass in grams
Steps:
- Find the mass in grams of the substance you have.
- Determine the molar mass of the substance (in grams per mole). This is usually found on the periodic table by adding the atomic masses of all atoms in the molecule.
- Divide the mass by the molar mass to get the number of moles.
Example:
Calculate the moles in 10 grams of water (H₂O).
- Molar mass of H₂O = (2 × 1.01) + 16.00 = 18.02 g/mol
- Moles = 10 g ÷ 18.02 g/mol ≈ 0.555 moles
If you want, I can help you calculate moles for a specific substance!
