BJ Chem Ch 9 Chemical Calculations
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| the amount of substance in 6.022 x 10(23) particles | mole
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| The number 6.022 x 10 (23) is called ____________ number. | Avogadro
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| the mass found in one mole of its particles | molar mass
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| a 2-dimensional representation of the structure of a molecule showing the types of atoms involved, the exact composition, and the arrangement of chemical bonds | structural formula
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| Gives the simplest whole-number ratio of atoms in a compound and tells what elements are present | empirical formula
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| Shows the types and numbers of atoms involved as they apear in the molecule. | molecular formula
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| Used to express the ratio of masses in a compound | percent composition
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| the matematical relationships between the amounts of reactants and products in a chemical reaction | stoichiometry
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| the first reactant to be completely consumed | limiting reactant
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| another reactant which has some left over | excess reactant
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| the yield which is mathematically predicted | theoretical yield
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| the yield which is measured | actual yield
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| the ration of the measured versus the predicted yield | percent yield
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| the comparing of the number of moles of constituent elements in a compound | mole ratio
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| the unit for molar mass | gm/mole
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| compound used the most after water in industrial processes | H2SO4
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| element, called brimstone, which spews from many volcanos | sulfur
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| the number of atoms in exactly 12 grams of C12 | Avogadro's number
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| (T or F) In Bob Jones text, Avogadro's number is considered a counted number | False
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| The number of significant digits to use with Avogadro's number in the Bob Jones text | 4
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| Empirical formula for C2H4O2 (CH3COOH acetic acid) | CH2O
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| the amount of C in 100 grams if the compound contains 50% carbon. | 50 grams
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