# Chapter 2: Chemistry & Measurements ```DE Chemistry: King William High School
 Length (meter – m)
 Volume (liter – L)
 Mass (grams – g)
 Temperature (degrees Celsius - oC)
 Time (seconds – s)
 mega (m) = 1 x 106 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 106 ug
 nano (n)  1 g = 1 x 109 ng
 pico (p)  1 g = 1 x 1012 pg

The average pencil, new and unused, is 19 cm
long. What is its length in millimeters?
Meters? Inches?

drive no faster than 130.0 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 m2?

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 = oC + 273
oC  oF (multiply by 9, divide by 5, add 32)
oC (9/5) + 32 = oF
EX: Convert 26oC to Fahrenheit.
 oF  oC (deduct 32, multiply by 5, divide by 9)
 (oF - 32)(5/9) = oC

EX: Convert 98.6 oF to Celsius.
 0.025
 1,000
 2.6 x 10-4
 8.7 x103
 Rules listed on page 28
 6.75
 304
 12.60
 3.6400 x 102
 0.009
 7,000

104.45 mL + 0.838 mL + 46 mL =

24.568 g – 14.25 g =

45.7 x 0.034 =

34.56/1.25 =



D = m/v
EX: What is the density of a metal sample
with a mass of 514.2 g and a volume of
114 cm3?
What is the mass of a glucose solution that
fills an IV bottle with a volume of 0.500 L?
The density of the solution is 1.15 g/mL?
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