Chapter 1: Matter and Measurements Review
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AP Chemistry
Science of chemistry dates form about 1800, chemistry is an experimental science.
- Measured Quantities
- Length
- Volume
- Mass
- Temperature
Kelvin: K= oC + 273.15
Celsius: oC = K - 273.15
- Significant Figures
- significant digits: based upon the meaningful digits from the laboratory instrument, know the rules on page 13 of the textbook.
- mathematics: multiplication and division
addition and subtraction.
- Conversion Factors
Based on the "bridge" between known and unknown
- one step conversions
- multiple step conversions
- Types of Substances
- elements: cannot be broken down into two or more simpler substances.
Know symbols, location on periodic table.
- compounds: contain two or more elements with fixed mass percents.
sodium chloride NaCl 39.345 Na, 60.66% Cl
- Properties of Substances
Used to identify a substance by comparing to the properties of known substances.
- chemical properties
- physical properties
- density
- solubility
- specific heat: q = m (
T) (Cp)
- color
- Separation of Mixtures
- distillation
- chromatography
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