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Neutralization Reactions

Figure from experiment 6 from Physical Science with Vernier

Introduction

If an acid is added to a base, a chemical reaction called neutralization occurs. An example is the reaction between nitric acid, HNO3, and the base potassium hydroxide, KOH.

{\text{HN}}{{\text{O}}_{\text{3}}}{\text{  +  KOH}} \to {{\text{H}}_{\text{2}}}{\text{O  +  KN}}{{\text{O}}_{\text{3}}}

Neutralization produces a salt and water. KNO3 is the salt in the above reaction. Heat energy is generally released, and the amount of heat released depends upon the properties of the acid and the base. Temperature measurements, made with a Temperature Probe, can be used to study the heat effects of neutralization.

Objectives

In this experiment, you will

  • Use conductivity to determine the strengths of acids and bases.
  • Use litmus paper to distinguish acids and bases.
  • Measure temperatures of reactants and products of neutralization reactions.
  • Study the relationship between acid and base strength and heat released during neutralization.

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 Physical Science with Vernier »

Experiment 6 from Physical Science with Vernier Lab Book

<em>Physical Science with Vernier</em> 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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