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% to mass mass to mole divide by small multiply ‘til whole. When solving either an empirical formula or a molecular formula problem, use the rhyme to solve. To find a molecular formula, first solve the empirical formula.
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When solving either an empirical formula or a molecular formula problem, use the rhyme to solve.
To find a molecular formula, first solve the empirical formula.
molar mass of molecularmolar mass of empiricalwill give you the number of times larger the molecular formula is than the empirical formula.