Stoichiometry

avagadro’s constant
6.022×10^23 atoms in 1 mol of a substance
empirical formula
simplest whole number ratio of atoms of element in a substance
molecular formula
the actual number of atoms in each element

molar mass/ empirical mass

stoichiometric calculations
coefficient represents # of molecules and molar ratios of compounds
percent yield
actual yield/theoretical yield X100
dilution
M1V1=M2V2
ideal gas
PV=nRT

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