Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 1 - Introduction: Matter and Measurement - Additional Exercises - Page 37: 1.61


$8.47gO_{2}$, law of constant composition.

Work Step by Step

The law of constant composition states that a chemical compound contains a fixed ratio of component elements. Since it contains 1.50g carbon for every 2.00g oxygen, we can create a ratio of oxygen to carbon. $\frac{2.00gO_{2}}{1.50gC}=1.33333$, there are 1.33333g oxygen for every gram of carbon. To find how many grams of oxygen there will be for 6.35g carbon, we simply multiply by the carbon to oxygen conversion factor and divide by 1 to cancel units. $6.35gC\times\frac{1.33333gO_{2}}{1gC}=8.47gO_{2}$
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