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Unformatted text preview: magnitude, charges. 5) A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 4.71 g/mL, 4.73 g/mL, 4.67 g/mL, 4.69 g/mL. If the actual value for the density of the sugar solution is 4.40 g/mL, which statement below best describes her results? A) Her results are accurate, but not precise. B) Her results are precise, but not accurate. C) Her results are neither precise nor accurate. D) Her results are both precise and accurate E) It isnʹt possible to determine with the information given. 6) What mass (in kg) does 5.84 moles of titanium (Ti) have? A) 0.280 kg B) 0.820 kg C) 0.122 kg 4) 3) 1) 2) 5) 6) D) 0.632 kg E) 0.352 kg E‐1 form 5 7) How many moles of Cs are contained in 595 kg of Cs? A) 7.91 × 104 moles Cs B) 5.39 × 102 moles Cs C) 1.26 × 103 moles Cs D) 2.23 × 102 moles Cs E) 4.48 × 103 moles Cs 8) Which of the following statements about energy is FALSE? A) Systems tend to change in order to lower their potential energy. B...
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This note was uploaded on 02/12/2011 for the course CHEM 112 taught by Professor Sttaf during the Spring '03 term at Arkansas Pine Bluff.

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