Empirical and Molecular Formulas
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Medium
Wayground Content
Used 1+ times
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an empirical formula?
Back
An empirical formula represents the simplest whole-number ratio of atoms of each element in a compound.
2.
FLASHCARD QUESTION
Front
What is a molecular formula?
Back
A molecular formula shows the actual number of atoms of each element in a molecule of a compound.
3.
FLASHCARD QUESTION
Front
How do you determine the empirical formula from a molecular formula?
Back
To find the empirical formula, divide the subscripts in the molecular formula by their greatest common divisor.
4.
FLASHCARD QUESTION
Front
Given the molecular formula C2H6, what is the empirical formula?
Back
The empirical formula is CH3.
5.
FLASHCARD QUESTION
Front
What is the significance of subscripts in a chemical formula?
Back
Subscripts indicate the number of atoms of each element in a molecule.
6.
FLASHCARD QUESTION
Front
What is the empirical formula of C4H10?
Back
The empirical formula is C2H5.
7.
FLASHCARD QUESTION
Front
If the empirical formula is CH2 and the molar mass is 28 g/mol, what is the molecular formula?
Back
The molecular formula is C4H8.
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