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Phthalein-Dye Test for Phenols | Virtual Lab

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Higher Education
High School
 
Phthalein-Dye Test for Phenols
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About This Simulation

Discover the rainbow inside phenolphthalein and how to unlock its colors through changing the pH. Take a deep dive to the molecular level to learn why chemicals are the color they are and put this all to use in the phthalein-dye test for phenols.

Learning Objectives

  • Identify the reagents for the test
  • Justify the environments for the reactions (acidic/ heated)
  • Recall the steps to safely perform the Phthalein-Dye test
  • Distinguish between positive and negative results
  • Discover the relationship between colour and pH for phenolphthalein

About This Simulation

Level:
Higher Education
High School
Length:
Min
Accessibility Mode:
Available
Languages:
English

Lab Techniques

  • The Science of Colors
  • Functional Group chemical testing
No lab techniques are listed for this simulation.

Related Standards

University:
  • NA
NGSS:
  • HS-PS1-3
AP:
LB:
No lab techniques are listed for this simulation.

Learn More About This Simulation

Fluorescent colored solutions, acid, and fire; what more could you ask for in chemistry!? In this simulation you will learn about phenolphthalein, a multi-colored molecule that acts as a color indicator to detect phenols in the phthalein-dye test. Get hands on, building this focal molecule yourself before discovering how its shape and color change over the pH scale. After learning the science on seeing colors it time to put it all to use performing the test for phenols yourself under the ever-helpful supervision of Dr. One.

Everything to know about Phenolphthalein First you will learn how to build phenolphthalein from its ingredients, building the molecule together on the holotable. Next we’ll see how phenolphthalein gets its useful color changing property by discovering all the colors it forms. Finally put your new knowledge to use and learn the steps to detect the phenol functional group. Master the Test for Phenols In this simulation you will see phenolphthalein in 15 different pH levels in 15 different beakers; that's a lot of setting up to do. But in the virtual lab we have experiments that clear away when you close the tab. In a real lab, students may focus on the ‘Dye’ part of the phthalein dye test, going home with pink stained fingers. In this sim we focus on the ‘Phthalein’ part of the test, allowing science and learning to be at the forefront. Finish with Flying Colors! The reactants are waiting. All it takes is a few simple steps, a spatula here, a drop of acid there..knowing why it all works is the hard part. When you’ve finished the heavy lifting by learning the science, this is where the fun begins. All that's left is to prove you can use your new skills and observe a vibrant color change. Think you can handle that?

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