Students should be able to...

• Define chemistry
• Write the symbol and name of common elements
• Describe the major areas of study in chemistry (organic, inorganic, analytical, physical, and biochemistry)
• Describe the difference between mass and weight
• Describe the difference between accuracy and precision
• Describe the scientific method and how its used
• List the SI base units for length, mass, volume, time, and temperature
• List and convert using the SI prefixes: kilo-, centi-, and milli-
• Convert temperatures from degrees Celcius to Kelvin (add 273) or from Kelvin to degrees Celcius (subtract 273)
• Convert mass, length, and volume, and temperature between the SI and English systems (2.54 cm = 1 inch, 454 g = 1 pound, .946 L = 1 quart)
• Calculate the density of a solid (mass / volume)
• Express numbers in scientific notation
• Express scientific notation in decimal form
• Compute numbers in scientific notation using a calculator
• Be familiar with the following terms:  theory, law
• Decide if a digit in a number is "significant"
• Round answers to arithmetic problems to reflect the precision of the number

  
  Sample Problems for Chapters 1 and 2

  Convert.

  1. 58.2 mm to cm
  2. 63.1 degrees C to Kelvin
  3. 13.5 km to miles
  4. 1.31 L to mL
  5. 8750 seconds to hours
  6. 13 gallons to L
  7. 20000 seconds to days
  8. 202 kilograms to pounds

  Express in scientific notation.

  9. 45300000 ____________________________________
  10. 0.000461 ____________________________________
  11. 0.0212 ____________________________________
  12. 3430 ____________________________________
  13. 0.002 ____________________________________

  Express in decimal form.

  14. 4.94 X 10³ __________________
  15. 2.312 X 10^-5 __________________
  16. 1.11 X 10³ __________________
  17. 3.92 X 10³ __________________
  18. 8.72 X 10^-2 __________________

  State the number of significant digits in each measurement.

  19. 470 birds _____
  20. 0.003 mL _____
  21. 320. g _____
  22. 0.2540 km _____
  23. 200000 ants _____

  Solve. Round each answer accordingly.

  24. 480 X 2.875 =
  25. 9.81 / 4 =
  26. 2.34 + 5.1204 + 9.63 =

  Convert.

  27. 98 degrees C to Kelvin
  28. 73 degrees C to K
  29. 374 K to degrees C
  30. 17 K to degrees C

  31. Breifly describe the five main areas of chemistry.
  

Back to Chemistry Geek Main Page