17gmol a 124ml b 135ml c 859ml d 117ml e 740ml 23

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Unformatted text preview: re in the measurement, 0.0005890 g? A) 4 B) 5 C) 6 D) 7 17) 18) 19) E) 8 20) 20) Calculate the atomic mass of element ʺXʺ, if it has 2 naturally occurring isotopes with the following masses and natural abundances: X- 45 X- 47 44.8776 amu 46.9443 amu 32.88% 67.12% C) 46.84 amu D) 44.99 amu E) 46.27 amu A) 46.34 amu B) 45.91 amu 21) Predict the charge that an aluminum ion would have. A) 1 B) 1+ C) 3+ 21) D) 5 E) 2+ E‐3 form 5 22) Determine the volume of hexane that contains 5.33 × 1022 molecules of hexane. The density of hexane is 0.6548 g/mL and its molar mass is 86.17 g/mol. A) 12.4 mL B) 13.5 mL C) 8.59 mL D) 11.7 mL E) 7.4...
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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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