Is Your Math Ready for Chemistry?

• Can you add, subtract, multiply and divide
  • signed numbers?
  • fractions?
  • decimal numbers?
  • numbers in scientific notation?
• Can you use percent?
• Can you convert between fractions, decimal numbers, scientific notation and percent?
• Can you use the metric system?
• Can you use conversion factors with unit labels to solve problems?
• Can you solve algebraic equations with one unknown?
• Can you use logarithms?
• Can you draw and interpret graphs?

1. -8 - (-4) =
2. -8(-4) =
3. 8 / (1/2) =
4. (10^-2) / (10^-1) =
5. If you get 40 out of 50 problems correct on a test, what is your percent grade?
6. Convert 1.3x10^-3 to a decimal
7. Convert 1.3% to a decimal
8. Convert 289,000 to scientific notation
9. Convert 7.68x10⁵ milligrams to kilograms
10. Solve 7x + 5 = 26 for x
11. If density = (mass in grams, g) / (volume in millilters, mL), what is the volume in mL of 850.0 g of silver if the density of silver is 10.5 g/mL?
12. What is the log of the number 1x10^-3?
13. Draw a graph of the following data and use the graph to determine the volume for a sample with a mass of 20 grams.

    Mass (g)	Volume (mL)
    8	1
    16	2
    24	3
    32	4

The answers to these example problems can be found here.

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