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Lab 2 separation of a mixture answers

01/01/2021 Client: saad24vbs Deadline: 2 Day

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Student Name


Mohammed Alnaimi


Student ID 48408 Lesson Separation of a Mixture of Solids Institution Ocean County College Session 2019L2 CHEM 181 DL1 Course CHEM 181 DL1 Instructor Lea Stage


Final Report


Exercise 1 Data Table 1: Mass of Substances


CHEM 181 DL1 Separation of a Mixture of Solids


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Exercise 2


Substance/Mixture Mass (g)


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


5.1


0.8


2.2


1.4


56.7


58.6


1.9


0.7


1.5


0.8


56.7


57.7


1


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Data Table 2: Mixture Summary


About 0.02% was recovered through the separation techniques.


1. What percent of the total mass of mixture of solids (Init ial) was recovered through the separation techniques?


Particles that didn't get separated completely or being lost on containers.


2. Describe possible sources of error to account for any deviation between the % of the total mass of mixture of solids (init ial) and the sum of separated components.


The most challenging step to perform in the separation procedure was separating the benzoic acid because it stuck to the sides of the cup. I ended up adding too much water to get as much of the benzoic acid as I could. This cause me to have to boil the salt solution longer than the experiment suggested. I'm not sure what could have been done to help this problem.


3. What was the most challenging step to perform in the separation procedure? What would you suggest to make the step less challenging?


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Substance/Mixture Mass (g)


Mass of Mixture of Solids (Initial)


Mass of Iron Filings


Mass of Sand


Mass Benzoic Acid


Mass of Salt


Substance/Mixture % of Total Mixture


Mass of Mixture of Solids (Initial)


Mass of Iron Filings


Mass of Sand


Mass Benzoic Acid


Mass of Salt


5.1


1.4


1.9


0.7


1.1


100%


27.45%


37.25%


13.72%


21.56%

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