3: Dimensional Anlaysis and Density
- Page ID
- 364764
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- 3.1: Problem Solving and Unit Conversions
- Converting from one unit to another is a particularly important skill in science and engineering. Dimensional analysis (also called the unit factor method) is a technique for making these conversions correctly. Dimensional analysis will be used in later chapters to perform other chemistry calculations besides just unit conversions.
- 3.2: Multi-Step Conversion Problems
- Sometimes you will have to perform more than one conversion to obtain the desired unit.
- 3.3: Units Raised to a Power
- Conversion factors for area and volume can also be produced by the dimensional analysis method. Just remember that if a quantity is raised to a power both the number and the unit must be raised to that same power.
- 3.4: Units in the Numerator and the Denominator
- Some complex units are composed of a unit in the numerator and a unit in the denominator. These include units of speed and mileage. Dimensional analysis can be used to make conversions with these units as well.
- 3.5: Density
- Density is a physical property found by dividing the mass of an object by its volume. Regardless of the sample size, density is always constant.
- 3.6: Temperature
- Three different scales are commonly used to measure temperature: Fahrenheit (expressed as °F), Celsius (°C), and Kelvin (K).