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Titration: Identifying the Concentration of an Acid—Student Laboratory Kit

By: The Flinn Staff

Item #: AP8485

Price: $24.05

In Stock.

Most products we use every day, including food, beverages, medication and cleaning solutions, have acidic and basic properties! In this lab, the concentration of an acid in a sample will be determined by a titration.

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Product Details

Most products we use every day, including food, beverages, medication and cleaning solutions, have acidic and basic properties! A common question chemists have to answer is how much of a specific acid or base is present in a product. In this lab, the concentration of an acid in a sample is determined by a titration. The lab begins with preparing and then standardizing the sodium hydroxide solution. Once the concentration of the base is known, students are then challenged to identify the concentration of a sample of hydrochloric acid. Use this colorful and engaging activity to help teach acid–base titration!

Complete for 30 students working in pairs.

Specifications

Materials Included in Kit: 
Hydrochloric acid solution, 0.5 M, 500 mL
Phenolphthalein solution, dropper bottle, 1%, 30 mL, 2
Potassium hydrogen phthalate, 25 g
Sodium hydroxide solution, 1 M, 500 mL


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Planning and carrying out investigations
Analyzing and interpreting data
Engaging in argument from evidence
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

MS-PS1.B: Chemical Reactions
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Cause and effect
Scale, proportion, and quantity

Performance Expectations

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.