Draw the reactions and mechanisms for the red cabbage extract experiment ( you will have a reaction with an acid and a reaction with a base). Please show three total reactions and mechanisms. The acid used was HCl and the base used was NaOH. Please answer "why are there color changes? what does this tell you about the frontier energy levels (HOMO and LUMO) of the products compared to the reactants?" Thank you.

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For a change of pace, let's try a hands-on laboratory experimentinvolving common household items that you either have at home orcan easily purchase in a supermarket. Page 168 of the textbookexplains how red cabbage can be used as an acidâbase indicator tofind the pH of a solution. In this experiment you will make thecabbage juice at home and try it out on different household items.To conduct the experiment, you will need the following: A smallhead of red cabbage Vinegar Household ammonia Six (6) differenthousehold items to use as samples (e.g., salt, detergent, lemonjuice, soap, etc.) Colored items are not suitable, and above all,do not use any dangerous, flammable, or highly caustic samples. Ina blender, blend about Â½ of a small head of red cabbage (or Â¼ of alarger head) and 3 cups of water. With a sieve, filter out thecabbage, and save the juice. You will have about 3 cups of cabbagejuice. Take three clear drinking glasses (colored glasses are notsuitable), and pour 2 ounces of the cabbage juice into each glass.Add 3 tablespoons of vinegar to glass 1 (this establishes the colorof cabbage juice for an acid); add 3 tablespoons of water to glass2 (this establishes the color for a neutral solution); and add 3tablespoons of ammonia to glass 3 (this establishes the color for abase). Set the glasses aside for comparison. In six similarglassesâor one glass washed after each sampleâadd 2 ounces of thecabbage juice and 1â3 tablespoons of a different household sample.After adding each sample, compare its color with the three glassesused to establish the color of acid, neutral, and base. Decidewhich substances are acidic, basic, or neutral, and record yourresults.

Hi can I please get help with problem 3 and 4. Thank you!

I am having trouble figuring out the reactions in my extraction of caffeine lab. Can you please draw out the structures for the reactants and products for me, or confirm if there is no reaction, between the following? I'll try to explain it the best I can. Thank you so much!

1) instant coffee + NaOH (near boiling temp)

2) product from #1 + dichloromethane

3) after centrifuging and pulling off dichloromethane; dichloromethane + CaCl2

4) after decanting the extract(we now have an extract and a crude product); extract + a few drops of dichloromethane

5) the crude product we get after decanting; crude product + ligroin + 2-propanol

6) washing product from #5; #5 product + cold ethanol/MTBE

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