CHEM 107 Lecture Notes - Lecture 3: Abbreviation, Nail Polish, Degree Symbol
Document Summary
Aleks: calculating mass density, using mass density to find mass or volume. Aleks: interconverting temperatures c and k, c and f. A graduated cylinder contains 19. 9 ml of water. When a small piece of galena is added, it sinks and the volume increases to 24. 5 ml. We need to find the new volume of water (24. 5 ml) and then find the difference to find the volume of the galena = 4. 6 cm^3 = 0. 0046l. The density of a substance is a characteristic physical property and has a specific value. Density units are usually g/ml or g/cm^3 (remember that 1ml = 1 cm^3) An unknown piece of metal weighs 9. 25 g and displaces a volume of water equal to 4. 76 ml. A crown that looks to be made of gold is found at an excavation site in rome, italy. The crown has a mass of 206 g and displaces 10. 75 ml of water.
