## General Chemistry: Principles and Modern Applications (10th Edition)

Published by Pearson Prentice Hal

# Chapter 1 - Matter: Its Properties and Measurement - Exercises - Units of Measurement - Page 27: 28

#### Answer

a) 1.55 kg = 1.55 * $10^{3}$ g b) 642 g = 0.642 kg c) 2896 mm = 289.6 cm d) 0.086 cm = 0.86 mm

#### Work Step by Step

a) From kg to g is 3 units smaller. So one has to multiply the number in kg with 1000 to convert it into g. 1.55 kg = 1.55 * 1000 g = 1.55 * $10^{3}$ g b) From g to kg is 3 units bigger. So one has to divide the number in g by 1000 to convert it into kg. 642 g = 642 / 1000 kg = 0.642 kg c) From mm to cm is 1 unit bigger. So one has to divide the number in mm by 10 to convert in into cm. 2896 mm = 2896 / 10 cm= 289.6 cm d) From cm to mm is 1 unit smaller. So one has to multiply the number in cm with 10 to convert it into mm. 0.086 cm = 0.086 * 10 mm = 0.86 mm

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