Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 2 - Measurement and Problem Solving - Exercises - Problems - Page 51: 62

Answer

a, 1473.4 b, 0.103 c, 411 d, 4.2

Work Step by Step

When determining the correct number of significant figures in the result of addition and subtraction calculations, the answer must be rounded off to the same precision as the least precise number in the calculations a, 1459.3 is the least precise number-to the tenths place so our answer should be 1473.4 b, 0.004 is the least precise number-to the hundredths place so our answer should be 0.103 c, 432 is the least precise number so our answer should be 411 d. 2.4 is the least precise number so our answer should be 4.2
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