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Properties of Matter

Properties of Matter. How Do we Classify Matter?. Physical . Chemical. Can be determined without in any way changing its identity May be extensive or intensive . Extensive: Depends upon how much of a particular sample you have on hand. Ex: mass, weight, volume

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Properties of Matter

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  1. Properties of Matter

  2. How Do we Classify Matter? Physical Chemical • Can be determined without in any way changing its identity • May be extensive or intensive . • Extensive: Depends upon how much of a particular sample you have on hand. Ex: mass, weight, volume • Intensive: Does not depend on the size of a sample. Ex: Color, odor, luster • Can be determined by its ability to be changed into a new and different substance. Ex: Ability to burn, ability to react with air

  3. Sort the following into Physical (extensive or intensive) or Chemical property • Combustibility • Mass • Malleability • Melting point • Solubility • Conductivity • Ductility • Ability to rust • Ductility • Boiling point • Abiltity to tarnish • Denisty • Flammability

  4. Check your answers: Physical Chemistry • Mass (extensive) • Malleability (intensive) • Melting point (intensive) • Solubility (intensive) • Ductility (intensive) • Boiling point (intensive) • Density (intensive) • Combustibility • Ability to rust • Ability to tarnish • Flammability

  5. Density • Intensive physical property • Quantity of matter in a given volume • Density=mass/volume • D=m/v • The density of a solid or liquid is expressed in grams/milliliter (g/ml) • The density of a gas is expressed in grams/liter (g/l) • Changes in temperature and pressure will affect the density of a gas more than a liquid , more than a solid. (gas laws)

  6. What is the density of 12.00 ml of sulfuric acid with a mass of 22.08 grams? • Solution: • D=m/v • D= 22.08 g/12.00 ml • D= 1.840 g/ml

  7. A sample of marble has a mass of 41.2 . It’s density is 2.56 grams/cubic centimeter. What is the volume? • Solution: • D=m/v • 2.56 g/cc=41.2g/V • V= 41.2/2.56 • V= 16.1 ml

  8. Charcoal has a density of 0.40 grams/ cubic centimeter. Calculate the mass of the sample with a volume of 212.8 cubic centimeters. • Solution: • D=m/v • M=D x V • M= .40 g/cc x 212.8 cc • M= 85 grams

  9. Specific gravity • The ratio of density of a substance to that of a standard (usually water) • Specific gravity= D substance (g/ml)/D water (g/ml) • Specific gravity= Number (no units) • D sample > D water (1 g/ml) the sample sinks D sample < D water (1 g/ml) he sample floats

  10. In a cooler which cans would you find on top –diet coke or regular coke?

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