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General Chemistry

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
quantitative   amount  
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molecular mass   sum of the masses of the atoms represented in a molecular formula (mass of a molecule in u)  
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formula mass   for ionic compounds where the sum of the masses of the atoms or ions present in a formula unit  
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mole (mol)   amount of substance that contains as many elementary entities as there are # of atoms in exactly 12g of the carbon-12 isotope  
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avogadro's number   6.022 x 10^23  
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molar mass   is the mass of one mole of a substance. Molar mass is numerically equal to atomic mass, molecular m ass, or formula mass however, the untis of molar mass are grams (g/mol)  
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mass percent composition   a compound refers to the proportion of the constituent elements, expressed as the number of grams of each element per 100 grams of the compound.  
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whole-number ratio   find the whole number ratio by dividing each number of moles by the smallest number of moles  
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molecular formula   is a simple integer multiple of the empirical formula. Molecular formula mass/empirical formula mass= integer (nearly)  
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