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Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 1 - Problem 7pe
Get Full Access to Chemistry: The Central Science - 12 Edition - Chapter 1 - Problem 7pe

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# Determining the Number of Significant Figures in a

ISBN: 9780321696724 27

## Solution for problem 7PE Chapter 1

Chemistry: The Central Science | 12th Edition

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Problem 7PE

Determining the Number of Significant Figures in a Calculated QuantityThe width, length, and height of a small box are 15.5, 27.3, and 5.4 cm, respectively. Calculate the volume of the box, using the correct number of significant figures in your answer.It takes 10.5 s for a sprinter to run 100.00 m. Calculate her average speed in meters per second and express the result to the correct number of significant figures.

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CHAPTER ONE: ATOMS MATTER  Matter – anything that takes up space and has mass  Composed of particles  Structure determines the properties  Atoms are the building blocks of matter  2+ atoms = molecule  Early ideas of matter - Leucippus and Democritus – first to propose the definition of matter - John Dalton – evidence supported Leucippus and Democritus States of Matter  Solid - Atoms/molecules pack closely together - Vibrate but don’t move past each other - Fixed volume/shape  Liquid - Atoms/molecules pack close but able to move past each other - Fixed volume but no fixed shape - Assume shape of container  Gas - A lot of space between atoms/molecules - No fixed volume/shape - Free movement - ill all available space - Compressible Elements, Compounds, and Mixtures  Matter is classified based on its composition  Pure substance - One component/composition does not vary from one sample to another - Composed of individual atoms or a group of atoms - Elements or compounds - Can be broken down/decomposed  Mixtures - Compounds of 2+ particles that varies from one sample to another - Heterogeneous o Composition varies o Contains multiple substances that can be seen - Homogenous o Same composition throughout Scientific Approach to Knowledge  Based on obser

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