Answer
a. 149.0 g/mol
Work Step by Step
Looking at the periodic table will tell us the molecular mass of each of the atoms in (NH4)3PO4. Add the mass of 3N + 12H + P +4O, we'll get 149.0 g/mol
Molar mass of (NH4)3 PO4 = 149.0 g/mol
Chemistry (12th Edition)
by Wilbraham
Published by
Prentice Hall
ISBN 10:
0132525763
ISBN 13:
978-0-13252-576-3
Chapter 10 - Chemical Quantities - Standardized Test Prep - Page 343: 2
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