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Determining the Molar Volume of a Gas—AP* Chemistry Classic Laboratory Kit

By: The Flinn Staff

Item #: AP6450

Price: $22.35

The Determining the Molar Volume of a Gas Classic Lab Kit for AP* Chemistry involves determining the volume of one mole of hydrogen gas at standard temperature and pressure (STP). A water displacement technique yields hydrogen for analysis.

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Classic AP Requirement #5—Determination of the Molar Volume of a Gas

In this experiment, students determine the volume of one mole of hydrogen gas at standard temperature and pressure (STP). Hydrogen is generated by the reaction of a known mass of magnesium with an excess of hydrochloric acid in an inverted gas measuring tube filled with water. The volume of hydrogen collected by water displacement is measured and corrected for differences in temperature and pressure in order to calculate the molar volume of hydrogen at STP.

Complete for 24 students working in pairs.

Determining the Molar Volume of a Gas Inquiry Guidance & AP* Chemistry Curriculum Alignment Transition Guide available! Follow the link in Resources to find this valuable publication that lets you adapt this classic AP Chemistry experiment for guided-inquiry and correlate with the AP Chemistry curriculum framework.

Specifications

Materials Included in Kit (for 24 students working in pairs): Magnesium ribbon, hydrocholoric acid solution, copper wire, one-hole rubber stoppers.

Additional Materials Required (for each lab group): 0.001-g precision balance (shared), barometer (optional), beakers, distilled or deionized water, eudiometer tubes, graduated cylinders, metric rulers, scissors or wire cutters (5–7 to share), thermometers, wash bottles.

*Advanced Placement and AP are registered trademarks of the College Board, which was not involved in the production of, and does not endorse, these products.
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