Moles: n = m / M
Pick a substance and a mass to see the number of moles and the number of particles.
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Questions students ask
What is a mole?
The amount of substance containing 6.02 × 10²³ particles (the Avogadro constant). One mole of a substance has a mass in grams equal to its relative formula mass.
What formula does it use?
n = m/M: moles = mass (g) ÷ molar mass (g/mol); particles = n × 6.02 × 10²³.
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