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You will need to create a ratio (conversion factor) between the units given and the units needed. Ask yourself which unit is bigger. Put a "1" by that unit. Then ask how many of the smaller units are in the bigger unit. Put that number in front of the smaller unit. There is your conversion factor.
This free quiz helps you practice converting between SI (metric system) prefixes as well as a wide variety of dimensional analysis problems.
This process is frequently described as Unit Conversion. As an example, you may be given a measurement of length in centimeters which must be converted to meters. This worksheet includes the rules and some guidelines to help you with converting, density problems, stoichiometry problems, and concentration problems. This worksheet is not
Chemistry: Conversion Factors Below are some conversion factors used in the SI System, and which we will use in this class. kilo- = 1000 centi- = 1/100 milli- = 1/1000 Other Conversions
Converting between units with different prefixes: The most systematic way to convert units from one prefix to another is to go through the base unit, and use two conversion factors.
1. Decide what form of the conversion factor to use: g/mL or the reciprocal, mL/g. Always begin by arranging the factors using units only. As the answer will contain one unit, begin with one unit, in this case, kg. 2. Insert the appropriate numerical values for each conversion factor. In order to cancel a mass and convert to a
Conversion factors can be used to convert units or to convert between equivalent ways of expressing a quantity. The quantity in the problem is multiplied by one or more “conversion factors,” in which the numerator is equal to the denominator.