3. Chemical Reactions

Empirical Formula

객관식
What is the empirical formula of the compound given the combustion data: 2.08 g CO₂, 1.28 g H₂O, and 4.77 g SO₃?
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미해결 질문
What is the simplest whole-number ratio of atoms in a molecule or formula unit called?
1910
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미해결 질문
A molecule's molecular formula and its empirical formula always share the same chemical properties
1535
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객관식
A hydrocarbon produced 0.0100 mol of carbon and 0.0150 mol of hydrogen during combustion. What is the empirical formula of the hydrocarbon?
873
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객관식
What is the empirical formula for a compound that contains 17.34% hydrogen and 82.66% carbon by mass?
158
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객관식
What is the empirical formula of $H_{2} {(N O_{3})}_{2}$ ?
93
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객관식
Which of the following is the empirical formula for a pentose sugar?
129
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객관식
Which of the following chemical formulas is already in its empirical formula?
131
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객관식
Which of the following compounds has the empirical formula CH2O?
237
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객관식
A compound contains 29% Na by mass. If the only other element present is Cl, what is the empirical formula of the compound?
133
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객관식
Determine the empirical formula for a compound that is 36.86% N and 63.14% O by mass.
935
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객관식
Which pair of substances has the same empirical formula?
130
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객관식
Which of the following is an example of an empirical formula?
136
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객관식
What is the empirical formula of $C_{3} H_{6}$ ?
125
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객관식
A compound contains 31.2% calcium, 28.6% sulfur, and 40.2% oxygen by mass. What is the empirical formula of this compound?
144
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