CHEM 0010 Unit


UNIT # 1
Introduction
Objectives
Reading
1.1 Metric System 1.2 Temperature Measure- ments 1.3 Scientific Notation 1.4 Dimensional Analysis 1.5 Precision, Accuracy, Uncertainty 1.6 Significant Figures 1.7 Calculations Involving Significant Figures 1.8 Density 1.9 Specific Gravity
Problems 1 \| 2 \| 3

MEASUREMENT

1.1 - Metric System

1.1.1 - SI System

In the SI system, prefixes are used to represent multiples of 10 or fractions of 10 of the base units. The following table summarizes the basic prefixes that you should know.

PREFIX

MULTIPLE

SCIENTIFIC NOTATION

ABBREVIATION

mega-

1,000,000

10⁶

M

kilo-

1,000

10³

k

deci-

0.1

10^-1

d

centi-

0.01

10^-2

c

milli-

0.001

10^-3

m

micro-

0.000001

10^-6

µ

nano-

0.000000001

10^-9

n

Click on the following types of measurements to see how the prefixes are applied to the base units:

Mass - base unit of gram (abbreviation: g)
Length - base unit of meter (abbreviation: m)
Volume - base unit of liter (abbreviation: L)

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