Chemistry: The Central Science (13th Edition)

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

Chapter 10 - Gases - Exercises: 10.43a

Answer

29.8 grams of Cl2

Work Step by Step

We have the volume is 8.7L and the pressure is 895 torr. We convert the pressure to atm: 895 torr * (1atm/760torr) = 1.178 atm We also have the temperature of 24C (add 273 for Kelvin) or 297 K We use PV = nRT to find the number of moles n = PV/RT = (1.178 atm * 8.70L) / (0.0821 * 297K) = 0.420 moles To find the mass we multiply by the molar mass, which is 2 * 35.45 gmol = 70.9 g/mol 0.420 moles * (70.9g/1mol) = 29.8 grams
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