CHEM CH1b

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Anonymous
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129540
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CHEM CH1b
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2012-01-21 21:51:48
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CHEM CH1b
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CHEM CH1b
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  1. on what is the definition of a meter based?
    the speed of light in a vacuum
  2. what is the only SI base unit that contains a metric prefix?
    kilogram. kg
  3. on what is the standard for the kilogram based?
    on a piece of platinum-iridium alloy that is kept at the International Bureau of Weights and Measures.
  4. boiling point of water:
    degrees K
    " "C
    " "F
    • 373.15
    • 100
    • 212
  5. freezing point of water
    degrees...
    K
    C
    F
    • 273.15
    • 0
    • 32
  6. what is the lowest temperature possible?

    called?
    0 degrees K

    absolute zero
  7. 180 F degrees = how many Celsius degrees?

    1 C degree = how many F degrees?
    • 100
    • 9/5
  8. how many degrees different are celcius and kelvin?
    273.15
  9. what is the SI unit of volume?

    what is a more common unit?
    • m3
    • liter, L
  10. 1 mL =
    1 cm3
  11. what is the SI unit of energy?

    what is another common energy unit?
    • joule, J
    • calorie, cal
  12. how many joules is a calorie?
    4.184
  13. what is a dietary calorie?
    1000 cal = 1 Cal = 1 kcal
  14. density relates what to what?
    mass to volume
  15. how are densities of solids and liquids reported?
    • g/cm3
    • g/mL3
  16. How are the dentities of gases reported?
    g/L
  17. because volume changes with temperature, X changes with temperature.
    density
  18. Most density valuse are reported at what standard temperature?
    25 degrees C (room temp)
  19. what is the density of water?
    1.00 g/cm3
  20. When calculations involving measurements are performed, the final calcualtion is not more certain than...
    ..the least certain number in the calculation.

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