DE Chemistry: King William High School.  Length (meter – m)  Volume (liter – L)  Mass (grams – g)  Temperature (degrees Celsius - o C)  Time (seconds.

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Presentation transcript:

DE Chemistry: King William High School

 Length (meter – m)  Volume (liter – L)  Mass (grams – g)  Temperature (degrees Celsius - o C)  Time (seconds – s)

 mega (m) = 1 x 10 6 base units  kilo (k) = 1000 base units  deci (d)  1 g = 10 dg  centi (c)  1 g = 100 cg  milli (m)  1 g = 1000 mg  micro (u)  1 g = 1 x 10 6 ug  nano (n)  1 g = 1 x 10 9 ng  pico (p)  1 g = 1 x pg

 The average pencil, new and unused, is 19 cm long. What is its length in millimeters? Meters? Inches?

 Road signs in Germany advise motorists to drive no faster than km/hr. What is this speed in feet per second?

 A standard US postage stamp is 2.5 cm long and 2.1 cm wide. What is the area of the stamp in m 2 ?

 The directions of an experiment call for you to use 676 mL of a solution. What is this volume in centimeters cubed? In nanoliters?

 K = o C  o C  o F (multiply by 9, divide by 5, add 32)  o C (9/5) + 32 = o F  EX: Convert 26 o C to Fahrenheit.

 o F  o C (deduct 32, multiply by 5, divide by 9)  ( o F - 32)(5/9) = o C  EX: Convert 98.6 o F to Celsius.

  1,000  2.6 x  8.7 x10 3

 Rules listed on page 28  6.75  304   x 10 2   7,000

 mL mL + 46 mL =  g – g =

 45.7 x =  34.56/1.25 =

 D = m/v  EX: What is the density of a metal sample with a mass of g and a volume of 114 cm 3 ?  What is the mass of a glucose solution that fills an IV bottle with a volume of L? The density of the solution is 1.15 g/mL?