3. Chemical Reactions

Empirical Formula

Open Question
What is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?
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Open Question
Which of the following is an empirical formula?
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Multiple Choice
What is the empirical formula for a compound that contains 50.05% sulfur and 49.95% oxygen by mass?
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Multiple Choice
A compound contains 27.0% sulfur and 73.0% oxygen by mass. What is the empirical formula of this compound?
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Multiple Choice
What is the empirical formula of a compound that contains 10.0 g of aluminum and 39.4 g of chlorine?
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Multiple Choice
The molecular formula for vitamin C is C6H8O6. What is the empirical formula?
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Multiple Choice
What is the empirical formula for a compound that is 36.1% Ca and 63.9% Cl by mass?
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Multiple Choice
Which of the following best describes a formula unit in chemistry?
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Multiple Choice
$S_{1} O_{3}$ is an empirical formula for which of the following molecular formulas?
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Multiple Choice
Which of the following is the empirical formula of C_3H_6?
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Multiple Choice
Which of the following is the empirical formula for propene (C3H6)?
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Multiple Choice
Which of the following molecular formulas is also an empirical formula?
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Multiple Choice
Which of the following formulas represents an empirical formula?
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Multiple Choice
How many atoms of calcium, phosphorus, and oxygen are present in one formula unit of Ca3(PO4)2?
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Multiple Choice
Given the compound 4Na3PO4, how many atoms of sodium (Na), phosphorus (P), and oxygen (O) are present in total?
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