3. Chemical Reactions

Empirical Formula

미해결 질문
What is the empirical formula of a compound that is 40% sulfur and 60% oxygen by weight?
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미해결 질문
Which of the following is an empirical formula?
1479
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객관식
What is the empirical formula for a compound that contains 50.05% sulfur and 49.95% oxygen by mass?
115
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객관식
A compound contains 27.0% sulfur and 73.0% oxygen by mass. What is the empirical formula of this compound?
112
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객관식
What is the empirical formula of a compound that contains 10.0 g of aluminum and 39.4 g of chlorine?
125
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객관식
The molecular formula for vitamin C is C6H8O6. What is the empirical formula?
150
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객관식
What is the empirical formula for a compound that is 36.1% Ca and 63.9% Cl by mass?
135
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객관식
Which of the following best describes a formula unit in chemistry?
107
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객관식
$S_{1} O_{3}$ is an empirical formula for which of the following molecular formulas?
62
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객관식
Which of the following is the empirical formula of C_3H_6?
103
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객관식
Which of the following is the empirical formula for propene (C3H6)?
112
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객관식
Which of the following molecular formulas is also an empirical formula?
107
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객관식
Which of the following formulas represents an empirical formula?
108
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객관식
How many atoms of calcium, phosphorus, and oxygen are present in one formula unit of Ca3(PO4)2?
148
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객관식
Given the compound 4Na3PO4, how many atoms of sodium (Na), phosphorus (P), and oxygen (O) are present in total?
111
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