52gmol c 24752gmol d 12376gmol e 7576gmol 14 d br

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Unformatted text preview: elow. A) chlorine gas B) carbon (graphite) C) gatorade D) black coffee E) chicken noodle soup 12) 13) E‐2 form 5 14) Which of the following elements is an alkaline earth metal? A) Ti B) Mg C) Cs 15) How many moles of C 3 H8 contain 4.95 × 1024 hydrogen atoms? A) 3.09 moles C 3 H8 B) 9.73 moles C 3 H8 C) 1.03 moles C 3 H8 D) 6.58 moles C 3 H8 E) 8.22 molesC 3 H8 16) Calculate the molar mass for Mg(ClO4 )2 . A) 223.21 g/mol B) 119.52 g/mol C) 247.52 g/mol D) 123.76 g/mol E) 75.76 g/mol 14) D) Br E) Cu 15) 16) 17) How many sodium ions are contained in 99.6 mg of Na 2 SO3 ? The molar mass of Na2 SO3 is 126.05 g/mol. A) 4.76 × 1020 sodium ions B) 1.05 × 1021 sodium ions C) 1.52 × 1027 sodium ions D) 2.10 × 1021 sodium ions E) 9.52 × 1020 sodium ions 18) How many xenon atoms are contained in 2.36 moles of xenon? A) 1.87 × 1026 xenon atoms B) 2.55 × 1023 xenon atoms C) 3.92 × 1024 xenon atoms D) 1.42 × 1024 xenon atoms E) 7.91 × 1025 xenon atoms 19) How many significant figures a...
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