stoichiometry honors
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Last updated 2:55 AM on 3/7/25
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5 Terms
1
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mole
measures amount of substance
2
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molar mass
The mass of one mole of a substance, typically expressed in grams per mole (g/mol).
3
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percent composition
mass of element in 1 mol compound
molar mass of whole compound
multiply by 100
4
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empirical formula
starting percent given (changes to g)
mass of element from table.
divide all by the lowest number to get amnt of elements in the formula
5
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molecular formula
find the molar mass of the empirical formula,
mass given in problem
mass of the empirical formula
multiply everything by the nearest whole number—> 5(CH) —> C5H5
Note 
Flashcards (33)