If I did the experiment again, I would ensure full capacity of chemicals to do my lab, because last time I ran out, which made the determination process harder due to the fact I needed the chemicals to form reactions, without reactions I have no basis for my experiment.
Above is supposed to be adding copper nitrate, which is blue, to 7 clear solutions. HCl An acid discovered by turning the litmus paper blue, determined after the other acid H2SO4 was revealed. As I mentioned before, one of our identifiers was that hydrochloric acid and Test tube mystery lab report hydroxide would create smoke.
So our goal was to find the other 7 through a series of tests. H2SO4 Known as an acid, because it turned the litmus paper blue. Both form a precipitate with sodium hydroxide, but when enough is added to aluminum nitrate, then the precipitate disappears, where as in calcium nitrate the precipitate will be murky, but will still persist.
The best solution for my issues throughout the experiment is more preparation in understanding the reactions, setting up the station, and going through the experiment. Then to identify what which of the two solutions, that created heat when mixed, were which, we mixed them both with ammonium hydroxide.
So, we were given 10 different solutions. Pb NO3 2 and HCl creates a white precipitate. Since we also already knew the identity of ammonium hydroxide and nickel nitrate, we only needed to test the other 7 solutions.
In conclusion, the experiment did not go as smoothly as I had expected. Next we wanted to find out which were the acids. So there you have it! Also, at the end of the experiment, students properly disposed of the laboratory waste and washed their hands, washing away any chemicals that they may have come in contact with.
This was my groups set of chemicals. This was our first test. The nickel nitrate and the copper nitrate only reacted with sodium hydroxide and ammonium hydroxide. This was the other set, I have no idea what they are.
Sodium hydroxide however would form a blue precipitate, taking all of the color out of the solution. Same as Test Tube 6 9. We were also able to identify silver in this test because it creates a brown precipitate.
The litmus paper turned blue for the base and red for the acids. In the experiment, the students worked with acids.
Then I wrote down what each of the solutions reacted with. In addition more research on the chemicals would have been helpful to determine which chemical was which, because my prior knowledge was not extensive enough to go through this experiment.
NaBr is the remaining chemical. Unfortunately my tubes were low on chemicals, because they had been used before my use. What was interesting is that the precipitate took all the blue out of the solution! The super boring post of how to identify ten liquids by their reactions and by direct observation.
We had to determine the solutions with at least five steps.
NaOH The only basic chemical found when it turned the litmus paper red. We also knew that all of our bases and our acids would create heat, with no precipitate. CuSO4 Identified by its natural blue color. That is, we set up a ten by ten table, and indicated the reaction between each of the 10 solutions.
Pb NO3 2 and KI creates a yellow precipitate. The last two solutions we needed to identify would be aluminum nitrate and calcium nitrate, and to decide which was which, we added more sodium hydroxide to each of the unknown test tubes.
In all, my procedure worked smoothly despite the little hiccups; there simply needed to be more effort in preparing for the lab. First, I wrote down what each of the three solutions that we knew were by direct observation.
This was my thought process, but we discussed everything as a group. All of the samples except Test tube mystery lab report hydroxide would just turn a diluted blue. Also, a significant amount of NaOH and NH4Cl was needed to create a smell, which hindered my experiment, because I had to do several trials in order to receive a slight odor.
First we had to create a reaction table. We decided to test with copper nitrate.10 Test Tube Mystery Introduction: The students were handed 10 test tubes with no identification. The students were supposed to design a method in determining what chemical was in each test tube.
View Notes - Twelve Test Tube Mystery from GEN at Purdue University. Victor PURPOSE: The purpose of this lab is to determine which aqueous solution is contained in each tube through%(4). 88 EXPERIMENT 6: TEN TEST TUBE MYSTERY • Report data collected and subsequent calculations to mi-centre.com • All equipment should be returned to the correct location after use.
WASTE • All solutions. May 19, · In this lab there are going to be 10 test tubes The will contain 6M HCl 6M NH3 3M H2SO4 6M NaOH M solutions of Ca(NO3)2 Ba(NO3)2 Cu(NO3)2 BiCl3 in HCl Cr(NO3)3 Al(NO3)3 YOu can only mix the test tubes.
The Ten Test Tube Mystery? In this lab there are going to be 10 test tubes The will contain 6M HCl Report Status: Resolved. With the 4 “mystery” solutions and a little Christmas-oriented chemistry, your students will create silver mirrors inside test tubes that make beautiful ornaments.
Prepare the solutions needed for students to use in the silver ornament lab. Test Tube Mystery Lab Report. The students were handed 10 test tubes with no identification - Test Tube Mystery Lab Report introduction.
The students were supposed to design a method in determining what chemical was in each test tube.Download