Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please help with question 6
Transcribed Image Text:Chem 105 Online
Procedure and Data
Density of Volatile Substance
1. Measure the mass of the empty glass beaker to 0.01 g.
2.
Add 5.0-mL of your acetone or isopropyl alcohol using the PLASTIC PIPET (do not use the
plastic graduated cylinder as it can ruin it and the markings.) You will have to do this in
1mL increments like in the previous lab.
Obtain the mass of the beaker and the solvent added.
3.
4. Add an additional 5mL of the solvent and then re-record the mass.
5. Calculate the density of the two trials. Find the average density and percent error for
your solvent.
Substance Used: Isopropyl alcohol
1. Mass of beaker
2. Mass of beaker from first 5.00mL addition
3. Mass of beaker from second 5.00mL addition
4. Mass of solvent from each addition (#2-1) and (#3-2)
5. Calculated density of solvent
6. Average Calculated Density
7. Percent error to 3 sf (actual is 0.793g/cm³)
Calculations:
5.00mL
79.59g
84.13g
88.489
4.549 4.35g
Volume Used:
3cm
Icm
Ch
Density of Small Rectangular Prism (Small wooden block)
1. Measure the dimensions of the wooden block in cm. Be sure to read to what you know
and then estimate!
2. Obtain the mass of the rectangular prism.
3. Determine the Density of wood.
4. Find the percent error.
1. Length of block
2. Width of block
3. Height of block
3cm
De
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