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Aim
Aim
To produce and purify a sample of 2-chloro-2-methylpropane
To produce and purify a sample of 2-chloro-2-methylpropane
A. Report & Analyse Results
A. Report & Analyse Results
1. Write an equation for the reaction of 2-methylpropan-2-ol with concentrated hydrochloric acid.
2. From your mass work out how many moles of 2-methylpropan-2-ol you used.
3. Work out how many moles of 2-chloro-2-methylpropane you could have made in theory.
4. Work out how much 2-chloro-2-methylpropane you could have made in theory.
5. Using your actual yield work out your percentage yield.
Math that you will require
Math that you will require
Use ratios to construct and balance equations.
Use percentages to calculate percentage yield
B. Evaluate your report by answering the questions
B. Evaluate your report by answering the questions
1. The crude product when it is shaken with sodium hydrogencarbonate solution.
What is removed during this step?
Write an equation for any reaction that occurs.
Why don't we use sodium hydroxide?
2. 2-methylpropan-2-ol has a boiling temperature of 82 °C and is soluble in water. 2-chloro-2-methylpropane has a boiling temperature of 51 °C and is insoluble in water. Explain these differences.
C. Evaluate your Practical by Completing the Form - so you know where you should aim to make improvements in future
C. Evaluate your Practical by Completing the Form - so you know where you should aim to make improvements in future
Required Resources
Required Resources
Core Practical 6 Student Evaluation.docxAS-and-A-level-Chemistry-Core-Practical-6 - Student worksheets.docxConsult CLEAPSS Hazcards® 84B,19B,98B,87,91A,67,47A. Perform a risk assessment using up-to-date information before this practical is carried out
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