Which sequence correctly converts grams to particles?

Which sequence correctly converts grams to particles?

• A. Grams -> Moles -> Particles
• B. Grams -> Particles -> Moles
• C. Particles -> Grams -> Moles
• D. Molar Mass -> Particles -> Grams

Answer: (A)

Converting grams to particles uses two steps to bridge mass and counting units. Start with grams and use the molar mass (grams per mole) to convert grams into moles. Once you have moles, multiply by Avogadro’s number (6.022×10^23 particles per mole) to get the number of particles. This sequence—grams to moles, then moles to particles—works because the mole is the link between macroscopic mass and microscopic count. Directly going from grams to particles skips the mole and can’t correctly apply Avogadro’s constant, while trying to go to particles first doesn’t provide a usable bridge to count individual entities.

Converting grams to particles uses two steps to bridge mass and counting units. Start with grams and use the molar mass (grams per mole) to convert grams into moles. Once you have moles, multiply by Avogadro’s number (6.022×10^23 particles per mole) to get the number of particles. This sequence—grams to moles, then moles to particles—works because the mole is the link between macroscopic mass and microscopic count. Directly going from grams to particles skips the mole and can’t correctly apply Avogadro’s constant, while trying to go to particles first doesn’t provide a usable bridge to count individual entities.