Wednesday, September 16, 2009

Sig Fig, Sci Not, DA Review Answer Key

Hi Class.

I heard a comment today that Significant Figures were created by the devil. I don't know if that is true, but I can see that they can be frustrating.

Take a deep breath. You will be just fine. : )

Answer Key:

1. 4.5 * 10^-5
2. 1.009 * 10^9
3. 5.2 * 10^13
4. 2 sig fig
5. 4 sig fig
6. 2 sig fig
7. 4 sig fig
8. 11.4
9. 31
10. 73.4
11. 4434

1. 2,400,000 cm/L
2. 17 lbs/min
3. 0.3457 km
4. 876,000 micrograms
5. 0.098 ML
6. 2.1 g/cm3
7. 1,100 g
8. 230 g

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