Chemistry (12th Edition)

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

Chapter 10 - Chemical Quantities - Standardized Test Prep: 12

Answer

C3H8O and 60.0 g/mol

Work Step by Step

Now that you know this, you would need to find the molar mass of each element in order to calculate the total molar mass. C = 12.0107 g/mol H = 1.00794 g/mol O = 15.9994 g/mol Remember that there were 3 Carbon molecules, so multiply 12.0107 x 3 = 36.0321 g/mol Remember that there were 8 Hydrogen molecules, so multiply 1.00794 x 8 = 8.06352 g/mol You already know that 1 Oxygen molecule is equivalent to 15.9994 g/mol, so now all you have to do is add them all up. 36.0321 + 8.06352 + 15.9994 = 60.09502 Relatively when rounding, they would be 36 + 8 + 15 = 59 All in all, your answer would be 60.0 g/mol
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