Notes gb lab 03 how tightly packed

Notes gb lab 03 how tightly packed

• 1.
  Notes
• 2.
  The student will: Accurately measure the mass and volume of a substance using the proper measuring devices  Demonstrate how the density of a substance is determined  Describe how density can be used to determine the identity of a substance
• 3.
  General Property Physical Property CharacteristicProperty Density
• 4.
  Observable or measurable property of matter.Mass and Volume  All matter has Mass & Volume
• 5.
  Any observable property of matter. Color  Texture  Hardness  Luster  Etc.
• 6.
   A physicalproperty that is unique to the substance, A characteristic property can be used to identify the substance ▪ Density ▪ Boiling Point ▪ Melting Point ▪ Reactivity
• 7.
  Density is a Characteristic Propertyit is a unique characteristic of a substance
• 8.
  The density ofa substance is constant and is not dependent on the shape or size .
• 9.
  Determined by thespacing between the particles as well as mass of the particles themselves  In general solids are more dense than liquids  Gasses are much less dense than liquids
• 10.
  The density ofwater (H2O) ▪1 g/cm3 = 1 g/mL ▪If a substance has a density less than water it will float no matter what its weight.
• 11.
  The ratio of themass of a substance to the volume of a substance D = m/V
• 12.
  When a liquid,density is written as grams per milliliter (g/mL) When a solid, density is written in grams per cubic centimeter (g/cm3 )
• 13.
  Calculate the Massof the substance (g) ▪ Calculate the volume of the substance (cm3) ▪ Apply the formula for density (D=m/V) ▪ Write density as g/cm3
• 14.
   Calculate themass of the full container (mf)  Calculate the mass of the empty container (me)  Subtract the empty mass from the full mass to calculate the mass of the liquid  mf–me=ml ▪ Apply the formula for density (D=m/V) ▪ Write density as g/mL