Lab 2 (15 points). A metal object has a mass of 19.67 g. When it was placed in a graduated cylinder containing 20.0 mL of water, the water level rose to 22.5mL What is the density of the metal, and the percent error? Identify the metal based on these known densities: Aluminum 2.70 g/mL; Zinc 7.13 g/mL; Iron 7.87 g/mL; Steel 8.05 g/mL; Brass 8.73 g/mL; Copper 8.96 g/mL