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POGIL Quiz: Empirical Formulas 1st period
You may have 5 minutes to take the quiz. You may not use your POGIL as reference. You may use scrap paper.
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Is the empirical formula for a compound always different from the molecular formula of a compound?
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Yes, you always reduce the empirical formula to a fraction of the molecular formula.
Yes, it is always possible to reduce the molecular formula.
No, sometimes empirical and molecular formulas are the same when you cannot reduce.
What is the empirical formula for C4H6? Make sure to capitalize the element symbols and do not include space.
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What is the carbon % mass in C4H6? Write only your final answer as a number. Round to whole number.
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The total mass of methane sample is 10.0g. The percent composition is 75% carbon and 25% hydrogen. What is the NUMBER OF MOLES of carbon in the sample? Keep three decimal places. Don't include units.
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An unknown compound contains 50% of sulfur and 50% oxygen. Determine the empirical formula.
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SO
S2O2
S2O4
SO2
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BONUS! From Model 3, what are the molecular formulas for 1-hexene, 3,3-dimethyl-1-butene and cyclohexane? Capitalize your symbols, and separate them by a comma and 1 space.
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