Inorganic Analysis Lab

Inorganic Analysis Lab - Calcium chloride and sodium...

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Qualitative Inorganic Analysis – Identification of Six Solutions In this lab, we were given six bottles of unknown solutions and we had to identify which solution was which by how they reacted with each other. There were four kinds of evidence for reaction: a precipitate formed, a gas evolved, a color change was observed or an odor was produced. In some cases, there was no reaction. We recorded what happened in each reaction and we were able to deduce which solution was which. The six chemicals we were given had dangers associated with them. Silver nitrate is toxic, corrosive and may stain skin. Hydrochloric acid is toxic, corrosive and can cause skin burns. Nitric acid is corrosive and toxic. Barium nitrate is toxic by ingestion.
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Unformatted text preview: Calcium chloride and sodium carbonate posed no major health risks. To protect our eyes, we wore safety glasses at all times. We disposed of the solutions (first by discarding the contents of the well plate and test tubes, then by rinsing them with water) in Waste Solutions. We disposed of the Pasteur pipets in the biohazard container. From the reactions, I was able to determine the solutions. Solution E was nitric acid. G was barium nitrate. M was hydrochloric acid. R was sodium carbonate. V was silver nitrate. Z was calcium chloride. I was able to come to these conclusions by comparing my data table with the table we filled out for pre-lab....
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