State the significant figure rule for multiplying and ...
Name__________________________________________________Period____________
CHEMISTRY REVIEW
UNIT 1 – SCIENTIFIC MEASUREMENTS
1. Contrast accuracy and precision.
2. Quantities have two parts, a ____________ and a ____________.
3. There are two types of quantities, ____________ and ____________. Which has sig figs associated with it and which does not?
Match the following.
4. ____ 1 sig fig A 600.
5. ____ 2 sig figs B 6.000 x 1012
6. ____ 3 sig figs C 600
7. ____ 4 sig figs D 0.00060
Express 0.0032065614 in scientific notation with the following number of sig figs.
8. 2 sig figs_____________________________
9. 4 sig figs_____________________________
10. 6 sig figs_____________________________
11. State the significant figure rule for multiplying and dividing, and then solve the problem.
[pic]
12. State the significant figure rule for adding and subtracting, and then solve the problem.
50.23 + 23.7 + 14.678 = _________
13. Define a base unit and give an example.
14. Define a derived unit and give an example.
15. The SI base unit for time is ____________, length is ____________, mass is ____________, and temperature is ____________.
16. When we multiply by a conversion factor, why does the value of the quantity remain unchanged?
17. Which conversion factor would be used to change feet to inches: 1 foot or 12 inches?
12 inches 1 foot
18. Use dimensional analysis to convert 15 liters to cm3.
19. Use the given apothecary units to determine the mass of 150 grains in ounces.
20 grains = 1 scruple 3 scruples = 1 dram 8 dram = 1 ounce
Use the data for the liquid in class and construct a graph. Be sure to include all parts of the graph discussed in class.
[pic]
20. Identify a part of the graph that you could interpolate.
21. Identify a part of the graph that you could extrapolate.
Review your lab equipment list and safety rules. Both are included on the test.
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