Separation of a Mixture of Solids Lab Report

Chem_Homework_2Separation of a Mixture of Solids
Hands-On Labs, Inc.
Version 42-0196-00-02
Lab Report Assistant
This document is not meant to be a substitute for a formal laboratory report. The Lab Report
Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables
that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab
reports by providing this information in an editable file which can be sent to an instructor.
Exercise 1: Separation of a Mixture
Data Table 1: Mass of Substances
Substance/Mixture
Mixture of Solids
Mass of Paper
Mass of Paper + Iron Filings
Mass of Iron Filings
Mass of 100-mL Glass Beaker
Mass of 100-mL Glass Beaker + Sand
Mass of Sand
Mass of Filter Paper
Mass of Filter Paper + Benzoic Acid
Mass of Benzoic Acid
Mass of 100-mL Glass Beaker
Mass of 100-mL Glass Beaker + Salt
Mass of Salt
Mass (g)
Exercise 2: Summary of Separation
Data Table 2. Mixture Summary.
Substance/Mixture
Mass of Mixture of Solids (Initial)
Mass of Iron Filings
Mass of Sand
Mass of Benzoic Acid
Mass of Salt
Mass (g)
% of Total Mixture
Questions
A.
What percent of the total mass of mixture of solids (Initial) was recovered through the
separation techniques? Hint: What was the percent difference between the sum of the
four separated components and the initial mass of the mixture of solids?
B.
Describe possible sources of error to account for any deviation between the percent of the
total mass of mixture of solids (initial) and the sum of separated components.
C.
What was the most challenging step to perform in the separation procedure? What would
you suggest to make the step less challenging?