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# 10 Metric Conversions and Unit Analysis - PowerPoint PPT Presentation

10 Metric Conversions and Unit Analysis. Very small. p m. pico meter. x 10 3. x 10 3. nano meter. η m. x 10 3. micro meter. μ m. x 10 3. milli meter. m m. x 10 3. m. meter. x 10 3. k m. kilo meter. x 10 3. M m. mega meter. x 10 3. G m. gega meter. tera meter.

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Presentation Transcript

Metric Conversions

and

Unit Analysis

pm

picometer

x 103

x 103

nanometer

ηm

x 103

micrometer

μm

x 103

millimeter

mm

x 103

m

meter

x 103

km

kilometer

x 103

Mm

megameter

x 103

Gm

gegameter

terameter

Very big

Tm

x 101

millimeter

mm

x 102

centimeter

cm

m

meter

The main purpose of this is to learn unit analysis and secondly learn about metric conversions.

To facilitate this you are only allowed to convert by 103 x per conversion.

Please do the same in your workbook. We use unit analysis as our main calculation tool in Chemistry 11 and Chemistry 12.

Learn it well and you will do awesome in chemistry.

1. Convert 1.23 x 10 conversions.12 Mm to m- you can only convert by 103 in any one step!

1.23 x 1012 Mm

x 1 x 103 km

x 1 x 103 m

1 Mm

1 km

= 1.23 x 1018 m

Write the starting number and units

Multiply with 1 Mm on the bottom and 103 km on top

Mutiply with 1 km on the bottom and 103 m on top

Do the math and round off to three sig figs

2. Convert 6.5 x 10 conversions.-6 m to nm- you can only convert by 103 in any one step!

6.5 x 10-6m

x 1 x 103mm

x 1 x 103μm

x 1 x 103nm

1 m

1 mm

1μm

= 6.5 x 103 nm

3. Convert 6.5 x 10 conversions.6 nm to m- you can only convert by 103 in any one step!

6.5 x 106 nm

x 1 μm

x 1 mm

x 1 m

1 x 103 nm

1 x 103 μm

1 x 103 mm

= 6.5 x 10-3 m

4. Convert 5.88 x 10 conversions.8 μm to km

5.88 x 108 μm

x 1 mm

x 1 m

x 1 km

1 x 103 m

1 x 103 μm

1 x 103 mm

= 5.88 x 10-1 km

5. Convert 65 m conversions.2 to mm2

65 m2

x 1 x 103

( )2

mm

2

2

1 m

= 6.5 x 107 mm2

6. Convert 875 mm conversions.3 to m3

875 mm3

x 1 m

3

3

( )3

mm

1 x 103

=8.75 x 10-7 m3