1. g of O = g of sample – (g of C + g of H) Combust 11.5 g ethanol Collect 22.0 g CO 2and 13.5 g H 2 O 6.0 g C = 0.5 mol C 1.5 g H = 1.5 mol H 4.0 g O = 0.25 mol O Empirical…
Slide 1 Slide 2 Slide 3 Atomic Mass l Atoms are so small, it is difficult to discuss how much they weigh in grams l Use atomic mass units. l an atomic mass unit (amu) is…
Slide 1 Slide 2 Dr. S. M. Condren Chapter 12 BEHAVIOR OF GASES Slide 3 Dr. S. M. Condren BEHAVIOR OF GASES Slide 4 Dr. S. M. Condren Importance of Gases Airbags fill with…
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Slide 1 Slide 2 THERMOCHEMISTRY OR THERMODYNAMICS Chapter 6 Slide 3 Chemical Reactivity What drives chemical reactions? How do they occur? The first is answered by THERMODYNAMICS…
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Slide 1We cant measure moles!! What can we do? We can convert grams to moles. Periodic Table Then use moles to change chemicals Balanced equation Then turn the moles back…
Slide 1Mass Relationships in Chemical Reactions Chapter 3 Slide 2 Natural lithium is: 7.42% 6 Li (6.015 amu) 92.58% 7 Li (7.016 amu) 100 = _______ amu 3.1 Average atomic…