Chemistry (12th Edition)

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

Chapter 10 - Chemical Quantities - 10.1 The Mole: A Measurement of Matter - 10.1 Lesson Check - Page 315: 11


12.01 grams per mole

Work Step by Step

To find the molar mass of a compound: Use the chemical formula to determine the number of each type of atom present in the compound. Multiply the atomic weight (from the periodic table) of each element by the number of atoms of that element present in the compound. Remember — that's the number written under the element symbol and element name. For example, take a look at carbon and you'll see it has an atomic mass of 12.01. So the molar mass of carbon is 12.01 grams per mole.
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