For Chemistry Honors

conversion factors

state the same measurement in two different units
Fractions in which the numerator and denominator are equal quantities expressed in different units
ex: 1 in. = 2.54cm

1cc = ? mL

1 mL and 1cm^3

1 in to cm

2.54 cm

1000m to km

1

100cm to m

1m

1m to mm

1000mm

1KL to L

1000L

1L to cL

100cL

1kg to g

1000g

1g to cg

100cg

1g to mg

1000 mg

density of water

1 g/mL

60sec to min

1 minute

60min to hr

1 hour

1mi to ft

5280ft

1L to mL

1000mL

1km to m

1000m

1m to cm

100cm

You must always show your _____ and include _____ in your answer for complete credit

work/units

Look at the _______ number in the calculation to determine the number of _____ _____ for your answer

first/sig figs

know:

what to start with
what to end with
figure out a way using conversion factors you already know

If you are going 50.0mph, how many ft/min are you traveling?

4.40x10^3 ft/min

Used density as a conversion factor if...

given in a problem

For a liquid substance with a density of 1.32 g/cm^3, what volume should be measured to deliver a mass of 68.4g?

51.8mL