Chemistry Lab: The Boiling Points Of Liquids

Chemistry Lab:  The Boiling Points Of Liquids
Chemistry Lab:  The Boiling Points Of Liquids
Chemistry Lab:  The Boiling Points Of Liquids
Chemistry Lab:  The Boiling Points Of Liquids
Chemistry Lab:  The Boiling Points Of Liquids
Chemistry Lab:  The Boiling Points Of Liquids
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2 MB|5 pages
Also included in:
  1. This "Matter and Change Bundle" includes everything you need to teach a unit on the properties of matter to your physical science or chemistry students. The bundle contains a 37-slide PowerPoint presentation, lecture notes for the teacher, a guided notes outline for the students, set of 64 task card
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Product Description

This lab is best used in your unit on "Matter and Change" to reinforce the concepts of physical properties and intensive properties. In this experiment, the student will be given two liquids: isopropyl alcohol and an unknown. The student will determine the temperature at which they boil and identify the unknown according to its boiling point.

Purpose of the Lab:

  • To determine the boiling point of isopropyl alcohol.
  • To calculate the percent error between the known boiling point of isopropyl alcohol and the boiling point determined experimentally.
  • To determine the identity of an unknown sample of liquid by determining its boiling point.


  • Thermometer (-10 to 110 deg. C)
  • Beral pipet (thin-stem/long)
  • Rubber bands (very small)
  • Beaker (250 ml)
  • Bunsen burner
  • Isopropyl alcohol
  • Acetone
  • Matches

What is included in this product?

  • Editable lab handouts that are ready to be printed and passed out to your students.
  • Complete instructions.
  • 2-page Teacher Guide containing set-up instructions, tips, and suggestions.
  • Complete Answer Key containing sample data, and all answers.
  • Everything you need for the successful completion of this lab.

What will the students be doing?

  • Students will assemble the boiling point device to determine the boiling point of isopropyl alcohol and an unknown liquid.
  • By making careful observations, students will watch for and observe “rings” of condensation that rise up the tube of the pipet.
  • Once these “rings” of condensation are stable, students will record the temperature at which the rings neither move up or down.
  • Students will carry out three trials to get an average boiling point for each liquid.
  • Students will complete 5 analysis questions.
  • Students gain practice and experience in using proper lab techniques.

You will receive both an editable Word document as well as a pdf form of the lab.

Related resources include the following:

Matter and Change Bundle (Powerpoint and Notes)

Lab: Conservation of Mass

Lab: Determining Density

Test: Matter and Change

Density Practice Problems

Quiz: Matter and Density

Matter and Change Autumn Themed Color by Number Activity

Matter and Change Jeopardy Powerpoint Review Game

Atomic Structure Worksheet

Matter and Change Crossword Puzzle

Matter and Change Set of 2 Homework Assignments

Matter and Change 4 Mini Labs

Matter and Change Task Cards

Lab: The Heating Curve of Water

Lab: The Boiling Points of Liquids

Lab: The Specific Heat of a Metal

Thermochemistry Unit Test

Thermochemistry Practice Problems

Lab: The Heat of Fusion of Ice

Lab: Heat of Crystallization

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Total Pages
5 pages
Answer Key
Teaching Duration
1 hour
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