Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 12 - Stoichiometry - 12 Assessment - Page 413: 64


1.78 x 10^25 molecules H2

Work Step by Step

We have amount methane and need molecules of hydrogen, so we use molar ratio of moles hydrogen to moles methane. Get the molar mass of methane by adding 1 * molar mass carbon + 4 * molar mass of hydrogen. Using the initial amount, divide it by number of grams in 1 mole. Then, multiply that by the molar ratio.
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