Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 3 - Sections 3.1-3.12 - Exercises - Problems by Topic - Page 133: 94a



Work Step by Step

Calculate the molar mass of the empirical formula by adding the molar masses of its constituent elements together. $4(12.01)+9(1.01)= 57.13$ Divide the molar mass given by this number and round to the nearest whole number (it should be really close). $\frac{114.22}{57.13}=2$ Multiply the Empirical formula by this number to get the molecular formula. $2(C_{4}H_{9})=C_{8}H_{18}$
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