For each number tell me how many sig figs it has.

1. 29.05

2. 3.7500

3. 0.008

4. 136,000

5. 130

6. 1.25

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Unit Conversions:

Always start with what you know

Put the scientific notion with the base unit

Make sure that the units cancel out

Solve

Tip: when doing long conversions take it one step at a time to reduce error

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How many centimeters are in 14 inches?

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How many mg are in 10 kg?

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​Celsius to Fahrenheit

T_F = 1.8(T_c ) + 32

T_F = 1.8(26) + 32 =

​Fahrenheit to Celsius

Temperature Equations

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T_C = T_K - 273

T_C = 300 - 273 =

Celsius to Kelvin

T_K = T_C + 273

T_K = 45 +273 =

​Kelvin to Celsius

Temperature Equations Cont.

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Density

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What is the mass of 124 mL of a solution with a density of 1.13 g/mL?