CHE and PHY Math

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Author:
switch2002
ID:
231201
Filename:
CHE and PHY Math
Updated:
2013-09-01 15:30:18
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Measurements conversions equations
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math
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  1. Celsius equation for Fahrenheit
    °C= 5/9 (°F-32
  2. Celsius equation for Kelvin
    °C= K-273
  3. Basic Units of Measurement
    • Mass ⇨  grams
    • Distance ⇨ meters
    • Volume ⇨ liters
  4. Area equation
    Area= distance × distance
  5. Volume equation
    Volume= length × width × height
  6. Density equation
    • Density= mass            
    •               volume
  7. Mega-
    • Abbreviation: M
    • Power of 10: 106
  8. Kilo-
    • 1000
    • Abbreviation: K
    • Power of 10: K3
  9. Deci-
    • 0.1
    • Abbreviation: D
    • Power of 10: 10-1
  10. Centi-
    • 0.01
    • Abbreviation: C
    • Power of 10: 10-2
  11. Milli-
    • 0.001
    • Abbreviation: m
    • Power of 10: 10-3
  12. Micro-
    • 0.000001
    • Abbreviation: μ
    • Power of 10: 10-6
  13. Nano-
    • 0.000000001
    • Abbreviation: N
    • Power of 10: 10-9
  14. Density equation
    • density= mass
    •               volume
  15. 1 Km=m?
    1000m
  16. Useful units of conversion
    • 1 inch = 2.54 cm
    • 1 foot = 0.305 m
    • 1 mile = 1.609 km
    • 1 mph = 0.447 m/s
    • 1 m = 39.37 in
    • 1 km = 0.621 miles
    • 1 m/s = 2.24 mph
  17. Common SI Units
    • Quantity:     Unit:         Abbreviation: 
    • time            second      s 
    • length         meter        m 
    • mass           kilogram    kg
  18. 1 Mile=ft.?
    5280 ft.
  19. 1 ft.=inch?
    12 inches
  20. 1 yard=ft.?
    3 ft.
  21. 1 yard=in.?
    36 inches
  22. 1 L= mL?
    1,000 Milliliters
  23. 1 cm3=mL?  (cubic centimeter)
    1 mL
  24. 1 dm3=L?  (cubic decimeter)
    1 Liter
  25. 1 pound= g?
    454 grams
  26. 1m=in.?
    39.37 inches
  27. 1 m/s=mph?
    2.24mph
  28. Atomic mass unit abbreviation
    "u" = 1.661  X 10-10
  29. What is Avogrado's number? (represents number of atoms or molecules in an element or compound)
    6.022 X 1023
  30. 1mol= weight of?
    atomic weight (g) on periodic table
  31. To find # of atoms/molecules use?
    • Avogrado's number
    • 6.022 X 1023
  32. Equation to find mass percent?
    • mass of element in compound 
    • mass of total compound  

    Multiplied by 100

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