
Empirical Formula Practice
Chemistry
KG - University
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula if you have 81.82% carbon and 18.18% hydrogen?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the empirical formula if you have 36.84% nitrogen and 63.16% oxygen?
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the empirical formula if you have 35.98% aluminum and 64.02% sulfur?
AlS
Al2S
AlS2
Al2S3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?
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