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you just need to watch 4 videos they’re very short and then answer the post lab questions on the attachment or pdffirst videohttps://drive.google.com/file/d/1-04B1bx5mDYwe4RsJ…second videohttps://drive.google.com/file/d/1-3PDN8tmqI_hwGxRq…third videohttps://drive.google.com/file/d/1-3yLZUf92SyVC1OgL…forth videohttps://drive.google.com/file/d/1–stOSfamGZBNBrhn… Post-Lab Questions
1. What is the percent recovery for your recrystallized sample? Show your calculation.
2. What is the melting point range for your recrystallized sample?
3. Provide three sources of error in your experiment.
4. Based on your results, do you think your recrystallized sample is pure? Provide your
reasoning.
5. Which compound from the table given in the Melting Point Assignment Worksheet (see the
Week 3 Overview in Canvas) do you think you recrystallized? Provide your reasoning

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