s 1.2 and 1.3 in OpenStax Total: 25 points Density - 5 Points Watch the video tutorial on Density Calculate the density of Iron if 27.6 cm has a mass of 74.6 g. Calculate these masses. (a) What is the mass of 6.00 cm of mercury, density = 13.5939 g/cm? - (b) What is the mass of 25.0 mL octane, density = 0.702 g/cm? Calculate these volumes. (a) What is the volume of 25 g iodine, density = 4.93 g/cm? (b) What is the volume of 3.28 g gaseous hydrogen, density = 0.089 g/L? Math with Measurements (section 1.6) - 2 points Watch video tutorial on Dimensional Analysis Convert 75 meters to kilometers? (1kilometer = 1000 meters)