... , which would wash away the organic compounds from the soil sample leaving the sand and the inorganic compounds on top of the filter. After washing the sample in a vacuum filtration set up, we obtained a yellow liquid, which is correlated to the color of m-nitroaniline. What was left on top of the filter was a brownish/reddish colored solid which we then separated by washing it with distilled water. After obtaining the organic compound in a yellow ... liquid, we decided to add 3M HCl into the liquid since m-nitroaniline is a weak base ,and the HCl would bind with the m-nitroaniline creat...

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