Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 1 - Exercises - Page 51c: 34

Answer

88g

Work Step by Step

The balanced equation for the combustion of ethanol is C2H5OH + 3O2 -> 2CO2 + 3H2O. To calculate the mass of carbon dioxide produced, you can use the balanced equation and the fact that the total mass of products (carbon dioxide and water) must equal the total mass of reactants (ethanol and oxygen). You can find the mass of carbon dioxide produced by subtracting the mass of water produced (54g) from the total mass of reactants: 46g of ethanol + 96g of oxygen = 142g 142g-54g=88g The mass of carbon dioxide produced would be 88 g.
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