To convert grams to moles, you divide by what?

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Multiple Choice

To convert grams to moles, you divide by what?

Explanation:
Converting grams to moles uses the molar mass as the conversion factor. The amount in moles is mass in grams divided by the molar mass (g per mole). This works because the molar mass tells you how many grams make up one mole of the substance. Avogadro’s number relates moles to number of particles, not mass to amount. Density and volume aren’t directly used to switch from grams to moles. Example: 18.0 g of water divided by its molar mass (18.015 g/mol) gives about 1.00 mol.

Converting grams to moles uses the molar mass as the conversion factor. The amount in moles is mass in grams divided by the molar mass (g per mole). This works because the molar mass tells you how many grams make up one mole of the substance. Avogadro’s number relates moles to number of particles, not mass to amount. Density and volume aren’t directly used to switch from grams to moles.

Example: 18.0 g of water divided by its molar mass (18.015 g/mol) gives about 1.00 mol.

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