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Exam_3_form D Solutions

20 1024 e 602 1024 602 1023 88 44u b 301

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Unformatted text preview: .0 °C B) 20.0 °C F) 25.0 °C C) 40.0 °C G) 45.0 °C D) 30.0 °C H) 15.0 °C 15. How many molecules are in 0.088 kg of carbon dioxide, CO2? (atomic masses: C = 12 u; O = 16 u. (Avogadro's number is 6.02 × 1023 /mol) N = N A n = N A m( in g) / m(in u) u = atomic mass unit A) 1.20 × 1024 E) 6.02 × 1024 = (6.02 × 1023 )(88) / ( 44u) B) 3.01 × 1024 F) 4.81 × 1024 = 1.20 × 1024 C) 2.79 × 1024 G) 5.41 × 1023 D) 1.83 × 1023 H) 6.02 × 1026 16. Helium atoms at 450 K have an RMS speed...
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