1. 1.4 Analysis of Units and Conversions in Chemistry
Dimensional Analysis
A method that allows you to easily solve problems by converting from one unit to another through the use of conversion factors.
Conversion factor
A fraction or factor written so that the denominator and numerator are equivalent values with different units.
Converting between inches and centimetres
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2. 1.4 Analysis of Units and Conversions in Chemistry Converting within the Metric System
Base Units
One Step Metric Conversions
One-step metric conversions involve a base unit (metres, litres, grams, or seconds) being converted to a prefixed unit or a prefixed unit being converted to a base unit.
Two Step Metric Conversions
Two-step metric conversions require the use of two conversion factors. Two factors will be required any time there are two prefixed units in the question. In a two-step metric conversion, you must always convert to the base unit first.
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3. 1.4 Analysis of Units and Conversions in Chemistry Derived Unit Conversions
Is composed on more than one unit Example: km/h or g/mL
Derived unit conversions require cancellations in two directions (from numerator to
denominator as usual AND from denominator to numerator).
You should be able to convert from one derived unit to another.
For example km/h to m/s
Conversions with Exponents
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4. 1.4 Analysis of Units and Conversions in Chemistry Temperature
Is a measure of the intensity of heat
Converting between Fahrenheit and Celsius
Method 1
Method 2
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