Repeat steps a-c for five test tubes of Pb2+ and Ca?". When you are finished, click on the red disposal bucket to clear the lab. Record your observations and discard the tubes. Continue with the third, fourth and fifth tube, but add NaOH, Na2SO4, and NaCl respectively. Add Na2S, record your observations and discard the tube. Drag a second tube from the blue rack to the metal stand. Drag this test tube to the red disposal bucket on the right. If the solution remains clear, record NR for no reaction. Record your observation in the table above. With one test tube in the metal stand and four others in the blue rack, click on the Na2CO3 bottle on the reagent shelf and observe what happens in the window at the top left. Click on the Divide button on the edge of the lab bench four times to make four additional test tubes containing Ag*. You can then click on the bottle of Ag+ ion solution on the shelf to add it to the test tube. Drag a test tube from the box and place it on the metal test tube stand. React each of the cations across the top) with each of the anions (down the left) according to the data table using the following procedures: Data Table AgNO3 (Ag) Pb(NO3)2 (Pb2+) Ca(NO3)2 (Caº) Na2CO3 (CO3) f k Na2S (S) b g NaOH (OH) h Na2SO4 (SO) d NaCl (CI) a с m e 0 a. The lab will open in the Inorganic laboratory. Start Virtual ChemLab, select Reactions and Stoichiometry, and then select Precipitation Reactions from the list of assignments. Transcribed image text: 2-4: Precipitation Reactions 1.
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