Module 8 Overview

WHAT YOU’LL LEARN TO DO: Review the ideal gas law; use the ideal gas law to calculate the mol of an unknown volatile liquid in a gas phase (the grams and mols of the sample will be used to calculate molar mass).

Learning Objectives

By the end of this section, you will be able to:

  • Calculate molar mass using the ideal gas law and laboratory data.
  • Determine the identity of an unknown from a list of choices.
  • Determine how sources of error affect your measurements.


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The learning activities for this section include:

Assignment Approximate Time to Complete Due Date
Read Introduction 5 minutes Before Lab

Complete the Prelab Problems

(Make sure you get this signed before you leave lab!)

15 minutes Before Lab
Complete Prelab Quiz 
Material will come from the lab introduction, safety, procedure, and the   prelab questions.
10 minutes Before Lab

Complete Formal Report (Rough Draft)

(on Lab 7 – should be completed THROUGH procedure section). 

Varies Before Lab
Complete Lab Handout  Varies Due at the Next Lab Meeting
Complete Formal Report (Final Draft) Varies Due at the Next Lab Meeting

*All students are expected to participate in the completion of the prelab assignment regardless of whether the assignment is an individual or group assignment.

*Prelab quizzes must be completed prior to coming to lab for a student to be admitted to class.