
% Comp, Empirical and Molecular Formulas
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
We divide a compound's components by the smallest number of moles to determine the ____________________ .
Back
mole ratio
2.
FLASHCARD QUESTION
Front
Molecular formulas are determined _______________.
Back
experimentally
3.
FLASHCARD QUESTION
Front
What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696 g/mol?
Back
K8S4O16
4.
FLASHCARD QUESTION
Front
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18 g/mol?
Back
C6H12O6
5.
FLASHCARD QUESTION
Front
What is the percent composition of Benzene, C6H6?
Back
C = 92.2% H = 7.8%
6.
FLASHCARD QUESTION
Front
Define empirical formula.
Back
The simplest whole-number ratio of atoms of each element in a compound.
7.
FLASHCARD QUESTION
Front
Define molecular formula.
Back
The actual number of atoms of each element in a molecule of a compound.
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