CHARACTERISTIC INTRINSIC PROPERTIES Atomic Chemistry

Physical Properties Can be observed or measured without changing the make-up of the matter of the object Are used to describe the object Two categories: non-characterisic characteristic

Physical Properties Examples Include: Appearance Texture Color Odor Melting Point Boiling Point Density Solubility

Non-Characteristic Properties (NCP) A physical or chemical property that is NOT unique to one particular substance. Can be used to describe MANY substances

NCP Examples Temperature Mass Shape Color Volume Acidity and Alkalinity (pH)

Temperature Measured in degrees Celsius (ºC) or Kelvin (K) A thermometer measure the average kinetic energy of the particles in the substance.

Mass

Shape and Color

Volume

Acidity and Alkalinity

Characteristic Intrinsic Properties A physical or chemical property that IS unique to a particular substance. CAN be used to identify a substance

CP Examples Density: the ratio of mass to volume (how much matter is in a given space) Magnetism: The force of attraction between a magnet and a magnetic object Solubility: How well a substance can dissolve in another substance. Melting Point: Temperature at which substance changes from solid to liquid Boiling Point: Temperature at which substance changes from liquid to gas

Solubility A measure of how well a substance can dissolve in another substance The solute: the substance that is DISSOLVED The solvent: the substance that does the DISSOLVING The solution: the result of mixing a solute and a solvent

Solubility

Melting & Boiling Points Freezing point of H 2 O: 0ºC Liquid water will freeze to solid ice at 0ºC Melting point of ice: 0ºC Solid ice will melt to liquid water at 0ºC Boiling Point of H 2 O: 100ºC Liquid water will change into gas at 100ºC

Example The English Oak Characteristic Property Density = 720 kg/m 3 NCP Light yellow to brown in color meters tall

Example #1 Which of the following properties is an example of a characteristic property? 1. Mass of 346g 2. Red in color and circular in shape 3. Temperature of 25ºC 4. Boiling Point of 204ºC

Example 2 Identify ALL of the NCP below: 1. Volume of 200mL 2. Square shaped 3. Temperature of 45ºC 4. Freezing point of 204ºC 5. Density of 24 g/mL

Example 3 Julie has an unknown substance in a beaker. Its properties are described in the chart to the right. Using the chart below, identify the mystery substance. Mass103.5g ColorYellow MagneticNo Volume50mL DensityColorMagnetic Iron7.86 g/mLYellow/grayYes Water1 g/mLColorlessNo Nitrogen g/mL YellowNo Sulphur2.07 g/mLYellowNo

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