Basic Laboratory Techniques 1 Pre-lab Questions You should be able to answer the following questions before beginning this experiment. 1. What are the basic units of length, mass, volume, and temperature in the Sl system? 2. What decimal power do the following abbreviations represent: (a) M. (b) k. (c) m. (d), atsi 3. What is the number of significant figures in each of the following measured quantities: (a) 351 g. (b) 0.0100 mL, (e) 1.010 mL, and (d) 3.72x10 cm? 4. What is the length in millimeters of a crystal of copper sulfate that is 0.180 in. long? 5. Perform the following conversions: (a) 72.3 mg to g. (b) 6,0x100m to mm, and (c) 325 mm to um. 6. DNA is approximately 2.5 nm in length. If an average man is 5 ft 10 in. tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man? 7. A liquid has a volume of 3.70 L. What is its volume in mL? In cm