1. British Surrender at Yorktown (1781)
Exams
Homework
Mastering Chemistry #8
Sacramento Ballet

2. The Metric System -- Prefixes
tera T
1x1012
Larger than base unit
giga G
1x109
mega M
1x106
kilo k
1x103
BASE UNIT
deci d
1x10-1
Smaller than base unit
centi c
1x10-2
milli m
1x10-3
micro m
1x10-6
nano n
1x10-9
pico p
1x10-12
femto f
1x10-15

3. The Metric System BASE UNITS PREFIXES
meter (m), liter (L), gram (g), second (s) etc.
PREFIXES
kilo (k), centi (c), nano (n), mega (M), etc.

4. Metric Conversions Put the unit you are converting to on top
Put the unit you are converting from on the bottom
Always put a 1 in front of the prefixed unit
Always put the exponent in front of the base unit
All metric conversions within a base unit have infinite sig. figs.

5. The Metric System 1 milligram 1 milligram  1 mg = 1x10-3 g
1 kilometer
1 kilometer
 1 km
= 1x103 m
1 microliter
1 microliter
 1 mL
= 1x10-6 L
1 gigabyte
1 gigabyte
 1 GB
= 1x109 B

6. Metric Conversions Convert 1.66 seconds to ms 1 ms 1 ms 1 ms
= 1x10-6 s
1x10-6 s
1x10-6 s

7. Metric Conversions Convert 4.2533x10-2 mL to L 1 mL 1 mL 1 mL
= 1x10-3 L
1x10-3 L
1x10-3 L

8. Metric Conversions Convert 98.5 cm to meters Convert 5.234x108 g to Mg
= 1x10-2 m
Convert 5.234x108 g to Mg
1 Mg
= 1x106 g

9. Metric Conversions When converting from one prefixed unit to another
always go to the base unit first!
Convert 2.91x108 nm to km
(nm  m  km)
1 nm
= 1x10-9 m
1 km
= 1x103 m
1 nm
1 nm
1x103 m
1x103 m

10. Metric Conversions When converting from one prefixed unit to another
always go to the base unit first!
Convert kL to mL
(kL  L  mL)
1 kL
= 1x103 L
1 mL
= 1x10-3 L
1 kL
1 kL
1x10-3 L
1x10-3 L