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The Molar Volume of a Gas

Figure from experiment 5 from Advanced Chemistry with Vernier

Introduction

In this experiment, you will determine the molar volume of a gas by conducting a chemical reaction that produces a gas, as shown in the reaction equation below.

{\text{Mg}}\left( {\text{s}} \right){\text{ }} + {\text{ 2HCl}}\left( {{\text{aq}}} \right) \to {\text{MgC}}{{\text{l}}_{\text{2}}}\left( {{\text{aq}}} \right){\text{ }} + {\text{ }}{{\text{H}}_{\text{2}}}\left( {\text{g}} \right)

You will react a known mass of solid magnesium with an excess of hydrochloric acid, in a sealed vessel, and use the pressure change to calculate molar volume at STP.

Objectives

In this experiment, you will

  • Measure the gas production of a chemical reaction by a pressure change.
  • Determine the molar volume of the gas produced in the reaction.
  • Calculate the molar volume of a gas at STP.

Sensors and Equipment

This experiment features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?

Standards Correlations

See all standards correlations for Advanced Chemistry with Vernier »

Experiment 5 from Advanced Chemistry with Vernier Lab Book

<i>Advanced Chemistry with Vernier</i> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

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