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BJ Chem Ch 9 Calc

BJ Chem Ch 9 Chemical Calculations

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