General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 1 - Chemistry and Measurement - Exercises - Page 8: 1.1

Answer

Answer: 11.02 grams of gas

Work Step by Step

1. Use the Law of Conservation of Mass. 2. .85 grams of wood + 9.45 grams of air = .28 grams ash + (unknown) 3. Due to the Law of Conservation of Mass, the mass of the reactants (wood + air) must equal the product. 4. .85 grams wood + 9.45 grams air = 11.3 grams of reactant 5. .28 grams ash produced + x amount of gas = 11.3 grams of reactant 6. 11.3 grams of reactant - .28 grams of ash = x amount of gas 7. 11.02 grams of gaseous product = x amount of gas
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