AP Chemistry Name Review: Test #1 1. The distance between carbon atoms in ethylene is 134 picometers. What is that distance in meters? 2. The area of a 15-inch pizza is 176.7 in2. Express this area in square centimeters.? 3. A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of 1.00 g/cm3 at the temperature of the measurement.) 4. Determine the answer that expresses the result of this calculation with the correct number of significant figures and with correct units. 16.18 cm ( 9.6114 g ? 1.4783 cm2 =