Exp 2 Group III - 4 Compare the color of the solution in...

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Step 3 Step 5 Step 7 Step 8 Step 9 Step 10 or Finish (If you start Step 11, you should finish the experiment.) You can stop after: Do not stop after step 4 or step 6! (If you do step 4, also do step 5. ) (If you do step 6, also do step 7.)
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Today You Should: 1. Finish your known. 2. Show me the numbered flowchart and starred lines filled in. 3. Get an unknown. 4. Start the unknown. 5. You can stop during the unknown after: Step 3 Step 5 Step 7 Step 8 Step 9 Step 10 or Finish (If you start Step 11, you should finish the experiment.) 6. Do not stop after step 4 or 6! (If you do step 4, also do step 5. ) (If you do step 6, also do step 7. )
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Today You Should: 1. Finish your known. 2. Tell me which ions you think you have (show me your lab report sheet). 3. Put 5 drops of each ion you think you have into a clean test tube.
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Unformatted text preview: 4. Compare the color of the solution in the test tube with the color of your original unknown solution in the vial. 5. If you got the unknown right, they should be the same color! 6. If the color is wrong, talk to me, and we might be able to figure out what is wrong. 7. I will check off on your lab report that you did the color test. 35 Basic Buffer pH ≈ 9.5 Group III ions require a relatively large [S2- ] in order to ppt.---39 35 36 39 43 35 36 39 43 35 Very acidic buffer pH ≈ 2 40 Not in your book 44 35 For part e. For Step 35---(Not in your book) 35 166 Shift in Base (OH-) 36 36 37 40 Ox #’s ↑ Metals lose e-HO2- gains e-HO2- is an oxidizing agent 44 35 41 44 35 41 45 35 41 45 35 41 36 35 41 36 45 35 42 37 37 45 46 35 42 46 35 42 37 47 48 49 50...
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