Empirical Molecular Formula Percent Composition

Quiz
•
Science
•
11th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the empirical formula of the following molecular formula: C3H6
C3H6
CH2
C2H4
CH3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the empirical formula if you have 88.80% copper and 11.20% oxygen?
Cu3O8
CuO4
Cu2O
Cu4O10
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?
CO2Li3
Li2CO3
Li3CO2
LiCO5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the empirical formula for N2S3?
NS
N3S2
N2S3
N1S1.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A formula with the lowest whole number ratio of elements in a compound is called
Molecular Formula
Chemical Formula
Empirical Formula
Distance Formula
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A compound is made up of 40.05% S and 59.95% O by mass. Find the empirical formula for these elements.
SO
SO2
SO3
SO4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A compound consists of 72.2% magnesium (Mg) and 27.8% nitrogen (N) by mass. What is the empirical formula?
Mg4N3
MgN2
Mg3N2
MgN
Tags
NGSS.HS-PS1-1
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