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Distribution of Acetic Acid Between Water and 1-Octanol—Wet/Dry Inquiry Lab for One Period

By: The Flinn Staff

Item #: AP9587

Price: $49.95

In Stock.

In this time-saving lab optimized for completion in one period, students enhance their understanding of intermolecular forces by determining the distribution of acetic acid between water and 1-octanol. A pre-lab assignment introduces the ideas and concepts needed to succeed on lab day.

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Product Details

Students enhance their understanding of intermolecular forces by determining the distribution of acetic acid between water and 1-octanol. A pre-lab homework assignment introduces the ideas and concepts needed to succeed on lab day. This time-saving activity has been designed to fit into a single 50-minute wet lab period. Complete for 24 students working in pairs.

Specifications

Materials Included in Kit:
Acetic acid, 2 M, 750 mL
1-Octanol, 500 mL
Phenolphthalein solution, 0.5%, 20 mL
Sodium hydroxide, reagent, 45 g


Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Using mathematics and computational thinking
Obtaining, evaluation, and communicating information
Constructing explanations and designing solutions
Developing and using models

Disciplinary Core Ideas

HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS2.A: Forces and Motion
HS-PS2.B: Types of Interactions
HS-PS3.A: Definitions of Energy

Crosscutting Concepts

Cause and effect
Structure and function
Energy and matter
Stability and change

Performance Expectations

HS-PS1-3: Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
HS-PS2-4: Use mathematical representations of Newton’s Law of Gravitation and Coulomb’s Law to describe and predict the gravitational and electrostatic forces between objects.
HS-PS3-1: Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.
HS-PS3-5: Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.