Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - Study Questions: 86

Answer

a) $C_4H_6O_6$ b) $C_3H_8$ c) $B_4H_{10}$, $53.32\ g/mol$

Work Step by Step

a) Empirical formula's molar mass: $M_u=75.04\ g/mol$ $M/M_u=2.0$, empirical formula: $C_2H_3O_3$ Molecular formula: $C_4H_6O_6$ b) Empirical formula's molar mass: $M_u=44.10\ g/mol$ $M/M_u=1.0$, empirical formula: $C_3H_8$ Molecular formula: $C_3H_8$ c) From the molecular formula: empirical formula $B_4H_{10}$ (1 unit) Molar mass: $53.32\ g/mol$
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