Freezing Point Depression Lab

pdf

School

Palm Beach State College *

*We aren’t endorsed by this school

Course

152

Subject

Electrical Engineering

Date

Apr 3, 2024

Type

pdf

Pages

Uploaded by AdmiralEagle625

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 1/9 Molar Mass by Freezing Point Depression Mary Elizabeth Beckwith Thursday, February 15, 2024 at 1:20:46 PM EST © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 2/9 Mary Elizabeth Beckwith Activities 1 and 2 Data Table 1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 60.0 65.0 65.0 © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression 55 57 58 53 50 54 51 48 50 48 45 47 47 44 44 46 42 43 44 40 40 44 39 40

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 3/9 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression 44 37 38 44 37 38 37 37 36 37 36 36 36 36

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2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 4/9 Mary Elizabeth Beckwith Question © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression During the four consecutive temperature readings, the Lauric Acid began to solidify at a quicker rate than before, and showed crystals developing. At the end of each consecutive readings, the solution had almost completely solidified. After the readings, the solution solidified completely and one could see the crystals formed in each one.

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 5/9 Mary Elizabeth Beckwith Data Table 2 © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression Mass of Lauric Acid (g) Mass of Benzoic Acid (g) 0 g Freezing Point (°C) Freezing Point Depression, ΔT Molality of Benzoic Acid in Lauric Acid Moles of Benzoic Acid Experimental Molar Mass of Benzoic Acid Average Molar Mass Percent Error © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression 3.00 3.00 3.00 0.410 0.500 44.0 37.0 36.0 7.0 8.0 1.794 2.0513 5.853e-3 6.154e-3 74.29 81.25 77.77 77.77 36.32 36.32

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 6/9 Mary Elizabeth Beckwith Calculations for Molar Mass of Benzoic Acid Δ m Δ m © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression accepted molar mass - experimental molar mass accepted molar mass © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression

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2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 7/9 Mary Elizabeth Beckwith Question © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression Possible sources of error include having the water temperature slightly off, misreading thermometer, and not dissolving solutions completely.

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 8/9 Mary Elizabeth Beckwith Activity 1 Step 13 Photo © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression

2/15/24, 1:20 PM carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultS… https://carolinascienceonline.com/players/lti/lti.html?resourceId=401308&contextId=ffe3bd71cae94fe19c59bc9628baee04&consumerKey=64b6fd9445af6c7948132db4&resultsUrl=&resultSourceId= 9/9 Mary Elizabeth Beckwith © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression Notes © 2022 Carolina Biological Supply Company Molar Mass by Freezing Point Depression

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