Chem 111 Lab Questions with Complete Solutions.

Which of the following pieces of equipment is not used in the experiment to measure the relationship between pressure and volume? Correct Answer-an Erlenmeyer flask Which of the following statements is/are true? 1.Gases are easily compressed compared to other states of matter. 2.Gases expand to fill the volume of their container. 3.All gases that exist in real life are considered to be ideal gases. 4.Molecules of different gases readily mix with one another. Correct Answer-1,2, and 4 If all other variables are held constant, and you want to decrease the pressure of a closed system, you must increase the volume of the system. Correct Answer-True Which of the following represents the value of Absolute Zero? 1.0 K 2.-273 °C 3.-273 °F 4.-273 K Correct Answer-1 and 2 Using the equation for the ideal gas law, PV = nRT, determine the final pressure (in torr) for a closed system if the temperature of the container changes from 408 K to 402 K