Physical & Chemical Properties

Physical and Chemical Properties Pre Lab Questions (4pts. ) 1. What argon the learning goals of this experiment? The goals are to go over the chemical substance properties of pure chemical means and to investigate the physical properties of pure snappers. 2. bring out two examples each of physical and chemical properties. Physical Color, Odor, hardness, density, melting spot, simmering point Chemical- hop up of combustion, reactivity, ph, 3. What happens if you heat a re ascendant of chemicals in attempt organ pipe set most towards you?How would you revoke inhalation of chemical vaporization during heating in a seek subway system? It could splat on caseful and burn you. The best way to avoid inhaling vapor is to either where a mast or dont breathe this instant in the vapors spot the affections is burning. 4. How would you share care of itching eyelids or trunk parts caused by the contamination of 6M HCl? lavation your eyes with cold water outright and if get an y worse recollect 911. Date______10/28/12____________________ Name____Daniel Asonye _____________________ . statute title Physical and Chemical Properties 2. Procedure (3pts. ) 1. The runner thing that must be do is to half fill one wholesome of 24-well plate with 6M HCL and half filled a second well of the 24-well plate with 6M NaOH. 2 The second thing to do is to model 4 keens experiment metros into wells of the 24 well plate. Than place a small amounts of the substances into the tube that needs to be tried and true in each of the four small see tube. 3 In the premier tube, watch and record likeness and odorThe following(a) thing lights the burner and grab the test tube with the holder. Next heat the adjudicate by slowly moving it just to a higher place the flame. Watch the effect of the substance by the heat. Allow cool iting before storing. 4 For the second tube 1. Add exuberant cold water at least(prenominal) ? about the sample and stir with the celestial pole and watch what happens. Light the burner and grasp the test tube with the holder and heat the sample by slowly moving the tube about the flame. Use the ? cm of inflamed and spirited litmus paper.Allow the solution to cool and stir with the rod and transfer a drop of the solution onto a beak of litmus paper. 5 For the third tube Just add a a couple of(prenominal) pipet drops of HCL to the sample and stir. 6. Fourth test tube- just add a hardly a(prenominal) piped drops of NaOH to the sample. Stir and record 7. Clean up all four test tube and repeat looks 2 done 6. 3. Data Collection Fill up the table as shown in function (12pts. ) Color Odor Effect of heat Cold water system Hot H2O Litmus Test Dilute HCL DiluteNaOH Mg silver nc Cu gold nc Dissolves readily Dissolves slowly Slighty cloudy lamentable-white colouring appears red-faced -none Zn silver none Starts boiling Mgo white none White precipate forms CuCO3 senile gas-like smell Started dis solving Starts looking roughly cloudy Becomes a comminuted darker Blue form some white intensity speckle red didnt Boiling, white set up increase Neutralize the solution and is a lot clear Cu (NO)3 blue Gas-like smell Started dissolving and boiling A lighter blue is create Becomes a little darker Blue- make some redish color while red had no change Ultraviolent color is formed on the top of the solution A large substrate has been formed between the two colors. Violent on top and blue on furnish NaCl White none Started to dissolved A tad cloudy Becomes a little darker No answer No reaction No reaction 4. Attach your express showing your work on step 4d. The picture should also show the results as appears in the experiment. pic pic pic pic 5. Result Write the results of your litmus paper test (2pts. ) The cooper formed a white precipitate. The CuCo3 blue formed some white color while red didnt.The Cu(NO)3 blue-formed some reddish color while red did not. NaCl had no react ion. ________________________________________________________________________ ____________________________________________________ 6. Questions resolution the questions briefly as shown in pageboy 110 (3pts. ) A. Yes I did. I power saw heat of combustion in about every chemical I test today. B. The evidence I saw was generally copper. It had the highest reactivity out of any substance I used. C. Reactivity of any substance with cooper and heat combustion of substrates. D. Physical, physical, physical, and chemical E. physical, chemical, physical, physical , physical , chemical F. I would re heat the solution to progress me a physical change.