Lab 1 Pendulum
Department of Chemistry
Properties of Gases
Date Submitted: June 16, 2013
Date Performed: June 13, 2010
Lab Section: Chem-181 DL
Course Instructor: Purpose
In this lab, I will be investigating some physical and chemical properties of gases and using these properties to identify these gases when they are encountered. *
Procedure
1. Hydrogen * a. Place a small piece of Zn (mossy zinc) metal into the test tube containing the diluted HCI. * b. Take the test tube and cap it with the rubber stopper with the short, straight, plastic gas delivery tubing through its center. Place the test tube into one of the wells of the 24- well plate. The test tube must stand up straight, so wrap a little tissue paper around the bottom of the test tube to help wedge it upright into a well opening. See Figure 1. Observe the reaction. Ties of Gases
c. Fill one wide-neck pipet bulb completely with water, invert and quickly place it on top of the test tube 's gas delivery tube as shown in the picture at right. a. Place the well plate with test tube assembly in a pie tin, as some water will overflow when the water in the pipet bulb is displaced by gas. b. When the water in the collection pipet has been completely displaced with hydrogen remove the collection pipet, keeping it inverted, and quickly place a thumb over the opening to keep any gas from escaping. c. Light a match. While holding the hydrogen filled pipet bulb horizontally with its mouth about 1 cm from the flame, gently squeeze a small portion of the contents of the pipet into the flame and observe. d. Record your observations. e. With a marker pen mark the wide-neck pipet bulb on the outside into
Properties of Gases
Date Submitted: June 16, 2013
Date Performed: June 13, 2010
Lab Section: Chem-181 DL
Course Instructor: Purpose
In this lab, I will be investigating some physical and chemical properties of gases and using these properties to identify these gases when they are encountered. *
Procedure
1. Hydrogen * a. Place a small piece of Zn (mossy zinc) metal into the test tube containing the diluted HCI. * b. Take the test tube and cap it with the rubber stopper with the short, straight, plastic gas delivery tubing through its center. Place the test tube into one of the wells of the 24- well plate. The test tube must stand up straight, so wrap a little tissue paper around the bottom of the test tube to help wedge it upright into a well opening. See Figure 1. Observe the reaction. Ties of Gases
c. Fill one wide-neck pipet bulb completely with water, invert and quickly place it on top of the test tube 's gas delivery tube as shown in the picture at right. a. Place the well plate with test tube assembly in a pie tin, as some water will overflow when the water in the pipet bulb is displaced by gas. b. When the water in the collection pipet has been completely displaced with hydrogen remove the collection pipet, keeping it inverted, and quickly place a thumb over the opening to keep any gas from escaping. c. Light a match. While holding the hydrogen filled pipet bulb horizontally with its mouth about 1 cm from the flame, gently squeeze a small portion of the contents of the pipet into the flame and observe. d. Record your observations. e. With a marker pen mark the wide-neck pipet bulb on the outside into
References: List all your references. Be sure to use the APA format. 1. John C. Kotz, Paul M. Treichel, John R. Townsend (2012). Chemistry & Chemical Reactivity: Eighth Edition, Hybrid: Mary Finch