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Dye Formation from Reactions: Example Problems

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1. Draw the dye that would form from reacting p-toluidine and resorcinol.

2. The attached drawings show the structure of Para Red, compound A, and compound B. Para Red is a orangish-red color. Will compound A be more orange or more red than Para Red? Will compound B be more orange or more more red than Para Red? Explain your answers?

3. Monday's lab encountered difficulties because we were using sodium nitrate rather than sodium nitrite. Explain why the inability to get a positive starch/iodine paper test should have altered us to this chemical mix-up.

I have attached the dyes.

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Solution Summary

Provides steps necessary to solve each of the questions related to the reactions.

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