Empirical Formula and Molecular Formula
Presentation
•
Chemistry
•
9th - 12th Grade
•
Hard
James Gonzalez
FREE Resource
6 Slides • 7 Questions
1
Discussion: Empirical and Molecular Formula
Some text here about the topic of discussion
2
Multiple Choice
What is the empirical formula for C4H6?
CH
CH3
C2H3
C4H6
3
C2H4
4
Multiple Choice
NaCrO4 and Na2Cr2O7
C2H4O2 and C6H12O6
C3H6O3 and C2H6O2
CH4 and C2H6
5
Multiple Choice
A sample contains 36.95 g of mercury (Hg) and 13.05 g of chlorine (Cl). What is the empirical formula for this compound? Hint: find the mole ratio between the 2 elements.
HgCl2
Hg3Cl
Hg17Cl36
HgCl
6
A sample contains 36.95 g of mercury (Hg) and 13.05 g of chlorine (Cl). What is the empirical formula for this compound?
7
Multiple Choice
Mg4N3
MgN2
Mg3N2
MgN
8
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
9
Multiple Choice
SO
SO2
SO3
SO4
10
Multiple Choice
CH2O
C2H4O2
C4H8O4
C6H12O6
11
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?
12
Multiple Choice
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.13% C, 8.76% H, and 52.12% O. What is the molecular formula for glycerol?
C2H3O2
CH2O
C2H4O2
C3H8O3
13
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.13% C, 8.76% H, and 52.12% O. What is the molecular formula for glycerol?
Discussion: Empirical and Molecular Formula
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