The molecule acetone is CH 3 COCH 3 If a sample contains...

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General, Organic, & Biological Chemistry
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Chapter 15 / Exercise 2
General, Organic, & Biological Chemistry
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1070 Week 1-to-2 check-in quiz 1) The molecule acetone is CH 3 COCH 3 . If a sample contains half a mole of acetone molecules, which of the following statements is true: a) The sample contains 1.0 mole of C atoms and 3.0 moles of H atoms. b) The sample contains 1.5 moles of C atoms and 3.0 moles of H atoms. CORRECT ANSWER c) The sample contains 1.0 mole of C atoms and 6.0 moles of H atoms. d) The sample contains 1.5 moles of C atoms and 6.0 moles of H atoms.
2) The molecule aspirin has the chemical formula C 9 H 8 O 4 . If a sample contains two moles of aspirin, which of the following statements is true: CORRECT
ANSWER d) The sample contains 1/18 moles of C atoms and 1/16 moles of H atoms. 3) A new molecule is composed of S and a new element Z with molecular formula SZ 4 . There are two samples of this new molecule. In the first sample there are 0.6 g of S atoms and 1.0 g of Z atoms. In the second sample there are 3.0 g of Z atoms. Which of the following is true?
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General, Organic, & Biological Chemistry
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Chapter 15 / Exercise 2
General, Organic, & Biological Chemistry
Stoker
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