Methyl Orange Lab Report

In this experiment, students had to synthesize methyl orange and observe its pH and dying components. The theoretical yield of methyl orange was calculated to be 160.72 mg and the actual yield came out to be 151.1 mg for this experiment. This is approximately a 94% yield. A melting point was not determined for the methyl orange in this lab because the methyl orange would have decomposed when exposed to heat. After we heated the methyl orange that we synthesized, it was a dark orange/red color and looked like the clay on a baseball field. During the experiment, we took the pH of the methyl orange. When put on a pH test strip, when the methyl orange was added, the spot on the strip turned a dark blue. This is about a 12 on the pH scale, meaning methyl orange is very basic. …show more content…
A color test was done on three separate objects: nylon-6,6 polymer, a cotton ball and a piece of fabric. Of the three, nylon-6,6 had the best absorption of the methyl orange. The change of color on each object was due to its chemical structure. The different chemical structures of each object affected the way in which the methyl orange would react with the object. The reason the nylon-6,6, had the best results is because of the abundant amount of hydrogen’s and the amide’s that the compound has.^2 The multiple hydrogen’s allow hydrogen bonding with the diazonium component of the methyl orange. The amide has a strong bond with the methyl orange because of its’ strong

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