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9 terms

Chemistry Study Flashcards

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mole
a quantity of particles of any type equal to Avogadro's number, or 6.02×10 23 particles
Avogadro's number
6.02 x 10 23
Representative particles
can be atoms, molecules or ions
molar mass
the mass of one mole of a substance
find moles
(grams/molar mass)
find grams
(moles * molar mass)
STP
standard temperature and pressure
find percent composition
(mass / mm) x 100
find molecular formula using empirical formula
calculate mm, divide by mm of empirical formula, multiply by ratio