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EmpiricalFormula

# EmpiricalFormula - Avogadro's number(mole number of atoms...

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Avogadro's number  (mole) - number of atoms in 12g of pure carbon-12   equal to 6.02*10 23 molar mass - numerically equal to the element's atomic mass (1 atom of carbon-12 = 12 amu, 1 mol of carbon-12 = 12 grams) use dimensional analysis to convert between masses, moles, and numbers of particles moles to number of representative particles    multiply number of moles by 6.02 x 10 23 How many carbon particles in four moles of carbon? 4 x 6.02 x 10 23 = 2.408 x 10 24 number of representative particles to moles    divide number of representative particles by 6.02 x 10 23 How many moles in 6.02 x 10 23 atoms? (6.02 x 10 23 )/(6.02 x 10 23 ) = 1 mass ( grams ) to mole    divide the mass by the representative particle's molar mass How many moles are in 24 grams of carbon-12? 24/12 = 2 moles to mass ( grams )    multiply number of moles by the representative particle's molar mass How many grams are in 23 moles of iron? 23 x 55.845 = 1.3 x 10

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EmpiricalFormula - Avogadro's number(mole number of atoms...

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