Could you please help with these questions from my lab? ...It was the Preparatio

Question

Could you please help with these questions from my lab?

...It was the Preparation of Azo Dyes

1. How do various substituents and chromophore size affect the colors of the dyes?

2. Why does coupling of p-nitrobenzenediazonium chloride occur mainly para to the -N(CH3)2 group of N,N-dimethylaniline but ortho to the -OH group of 2-napthol?

3. So this experiment has a diazotization and a coupling stage...if the diazo component is p-Toluidine and the coupling component is Resorcinol we would have to add a greater volume of base. Why is this?

Thanks!!

Explanation / Answer

1.Today

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