Please answer questions 1-4 I need all the help I can get with the questions I h

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Please answer questions 1-4 I need all the help I can get with the questions I have posted the steps I took along with the results I got below
EXPERIMENTAL PROCEDURE Wear gloves for all parts of procedure. Prepare a solution of your anion unknown by dissolving about 0.2 g of your sample in 15 mL DI water. (0.2 g is about ¼ inch on the end of a scoopula.) Use afreshunknown GENERALTESTS Group I anions: To 10 drops of unknown solution, add 6 M NH, until basic and then 4 drops BaCI, solution. Formation of a precipitate confirms the presence of ions of this group. Use Na,SO, solution as a known for comparison. Group II anions To 10 drops of unknown solution, add 6 M HNO, until acidic then add 4 drops more. Add 3 drops AgNO, solution. Formation of a precipitate confirms the presence of anions of this group. Use NaCI solution as a known for comparison. Group III anions No general test is available for this group SPECIFICTESTS Based on the results of your general tests, run the specific anion tests for the anion groups found present in your sample. Each of the possible anions is present on the lab shelves as either the Na" or K salt (e.g., NaC or KC as the known for chloride ion). Use the appropriate anion off of the shelf as a "known for comparison with your unknown. (The one exception to this is for the phosphate ion, for which you should use NaH2P0. as the known.) Tests may be done in any order except that the bromide iodide test must be done before the nitrate test. I. Sulfate Test To 5 drops of solution, add 2 drops 6 M HCl and 2 drops BaCl, solution. A white ppt proves sulfate. 2. Phosphate Test Mix 5 drops of 0.5 M ammonium molybdate, (NH),MoO, reagent with 5 drops 6 M HNO, and add 10 drops of the test solution. A yellow ppt of (NH) PO,.12 MoO, indicates the presence of phosphate. If a ppt does not in a water bath for a few minutes.

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Please answer questions 1-4 I need all the help I can get with the questions I h

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