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In these practice problems, we will go over conversion factors and their use in dimensional analysis for length, mass, volume, and density.
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.
Converting kilograms (kg) to stones (st) is a straightforward mathematical process that involves a simple conversion factor: One kilogram equals 0.157473 stones. This ratio is all you need to perform the calculation.
This free quiz helps you practice converting between SI (metric system) prefixes as well as a wide variety of dimensional analysis problems.
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.
Multiple Conversions. Sometimes you will have to perform more than one conversion to obtain the desired unit. For example, suppose you want to convert 54.7 km into millimeters. We will set up a series of conversion factors so that each conversion factor produces the next unit in the sequence.
Worksheet CHM 130 Conversion Practice Problems. For conversions within the metric system, you must memorize the conversion (for example: 1000 mL = 1 L, or 1000 g = 1 kg should be memorized) Remember that metric conversions are exact ratios and thus will not limit your significant digits for the answer. First start with what you are given.
