Indicactor Lab: What is in each Test Tube? :: essays research papers

What is in each test-tube? What proof do I have of this?Test-tube A Test-tube A had water in it. I can base this on the accompaniment that it was a neutral, reacting neither to red or unconsecrated litmus news report. Phenolphthalein in addition did not react to this heart and soul. The pH value was 7, neutral, also adding to the proof that this substance was water, because water is neutral. The substance was clear and odorless, and all of these reactions combined light-emitting diode me to my destruction of substance A being water.Test-tube B Test-tube B had spoiled draw in it. The substance reacted to blue litmus paper, and red litmus paper underwent no change. Phenolphthalein did not change, and the pH value was 6, a weak acid. The show of this substance was a thick, white liquid that had a horrible odor. These observations led me to my conclusion that substance B is spoiled milk.Test-tube C Test-tube C had ammonia water in it. The substance reacted to red litmus paper, a nd it had no effect on blue litmus paper. Phenolphthalein turned a hot pink likeness very quickly, and the pH value was about 11.5. The substance was clear and had a unafraid odor to it. These results led me to my conclusion that substance C is ammonia.Test-tube D Test-tube D contained lemonade. The substance reacted to blue litmus paper, and red litmus underwent no changes. It had no effect on Phenolphthalein, and its pH value was 3, a strong acid. Knowing that lemons are very acidic, and that the substance was yellow and sweet smelling, I concluded that substance D was lemonade.Test-tube E I could not hang to a conclusion on what substance E was. It reacted weakly to blue litmus paper, and it did not change red litmus. It had no effect on Phenolphthalein, but its pH value tested as 7. This cannot be overcompensate however, because all acids have a pH value less than 7. The way and smell were not of any help, because it was a clear substance with a slight odor I couldn&8217t k ey in on.