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  • Subject Area

    • Science: Chemistry: Gases, Liquids and Solids
    • Science: Chemistry: Stoichiometry and Mole
    • Science: Chemistry: Kinetics

  • Author

    John Sebranek

  • Level

    9-12
    College

  • Activity Time

    2 Days

  • Device
    • TI-84 Plus
    • TI-84 Plus Silver Edition
  • Applications
  • Accessories

    Sensor - Barometer
    Sensor - Temperature

  • Other Materials
    Glass 2.5 L acid bottle, latex tubing, test tubes, one-hole rubber stopper to fit test tube with glass tube in tip, two-hole rubber stopper to fit glass acid bottle with glass tubes in tip, plastic tray, 2 ring stands, 1 tube clamp, 1 six inch ring clamp, Bunsen Burner, balance, potassium chlorate and magnesium dioxide powder, digital balance accurate to 0.01 g.
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Molar Gas Lab

Published on 06/09/2008

Activity Overview

Students use stoichiometry to determine the mass of oxygen gas in a bottle. They may also check their answer against the amount of potassium chloride produced during the reaction.

Before the Activity

Students need to understand gas laws and stoichiometry.

During the Activity

Students use stoichiometry to determine the mass of oxygen gas in a bottle.

After the Activity

Review student answers:

  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary