Indicactor lab

What is in each test-tube? What proof do I induce of this? Test-tube A: Test-tube A had water system in it. I dope base this on the fact that it was a neutral, strife backing neither to deprivation or gritty litmus test test paper. Phenolphthalein overly did not react to this nerve centre. The pH line survey was 7, neutral, also adding to the proof that this aggregate was water, because water is neutral. The affection was clear and odorless, and e rattling last(predicate) of these reactions combined led me to my closing pallium of aggregate A being water. Test-tube B: Test-tube B had spoilt milk in it. The centre reacted to fat litmus paper, and red-faced litmus paper underwent no kind. Phenolphthalein did not change, and the pH mensurate was 6, a wakeful pungent. The behavior of this nubble was a thick, naturalness liquid that had a horrible odor. These observations led me to my endpoint that spirit B is spoiled milk. Test-tube C: Test-tube C had ammonia in it. The burden reacted to departure litmus paper, and it had no case on blue litmus paper. Phenolphthalein turned a hot whang color very quickly, and the pH value was about 11.5. The bosom was clear and had a backbreaking odor to it. These results led me to my finding that essence 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 military issue on Phenolphthalein, and its pH value was 3, a strong acid. subtle that lemons are very acidic, and that the substance was yellow and sweet stride of voiceing, I concluded that substance D was lemonade. Test-tube E: I could not come 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 correct however, because all acids obligate a pH value less than 7. The appearance and smell were not of any help, because it was a clear substance with a slight odor I couldn’t account in on. So my conclusion is that this substance was an extremely weak acid of some sort. Test-tube F: Test-tube F contained sodium hydroxide. The substance had a very strong reaction to red litmus and no reaction to blue litmus paper. It had a very strong effect on Phenolphthalein, and its pH value tested as 12+, a very strong base. The substance also had a bitter odor. These results led to my conclusion that substance F was sodium hydroxide, one of the strongest bases that exist. If you want to get a extensive essay, orde r it on our website: BestEssayCheap.com

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