Module 2 Intro
1. Module 2 Intro
1.21. Lab
Module 2—Chemical Compounds
Lab: Boiling Points of Hydrocarbons
Background Information
When a substance boils, molecules leave the liquid phase and enter the gaseous phase. In order to make this transition to a higher energy phase, they must have sufficient energy to overcome attractive forces between neighbouring molecules in the liquid phase. It is hypothesized that molecules with greater intermolecular forces have higher boiling temperatures.
Purpose
The purpose of this investigation is to test the hypothesis relating boiling temperature to strength of intermolecular forces.
Problem
Do molecules with larger intermolecular forces have higher boiling temperatures?
Procedure
Step 1: Open the learning object, Boiling Points of Hydrocarbons.
Step 2: Follow the instructions shown in the learning object. Record your observations in the form of a table.
Module 2: Lesson 4 Assignment
Retrieve Module 2: Lesson 4 Assignment that you previously saved to your course folder.
Complete question 1, Lab: Boiling Points of Hydrocarbons, in the Lesson 4 Assignment.