Laboratory Qual Analysis Using the given tables of summarized data, answer the following questions, and upload your answ

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Laboratory Qual Analysis Using The Given Tables Of Summarized Data Answer The Following Questions And Upload Your Answ 1 (82.13 KiB) Viewed 32 times

Laboratory Qual Analysis Using the given tables of summarized data, answer the following questions, and upload your answers in CANVAS as a single pdf file. Summary of Data Collected Test/Reagents pH (not pptn) Flame (not pptn) Precipitation OH¹ (NaOH) CO₂² (Na₂CO₂) HCO,' ((NH,),CO,) NH, NH,*/NH, Buffer C1¹ (either NaCl or HCI) Agt A1³+ 6 3 Ag* W W *** ** ** W Al³+ Dissolution of Carbonate/Hydroxide solid w/NH w/OH'- w/NH3 W W W Fe³+ 2 oY Fe³+ Ag OR OR no OR OR OR yes R yes Ca²+ 7 R 2: Ca²+ W Al³+ Volatility Yes (note: w-white, bl-blue, bk-black, oY-orangish red, oY-orangish yellow, Y-yellow, R-red, G-green, V-violet) Reagents are used to excess. ** complex ions with NH,, its buffer, and ammonium carbonate. no yes Mg²+ NH₂+ Nat 6 6 7 Y no Mg²+ NH₂+ W Fe³+ no no no Ca²+ yes Na no no K* 7 V K* + Mg²+ yes no no

Analysis of Data Summary (14 of the 20 points) You have a solution with up to all eight cations from Qualitative Analysis Demo, (1), and (II). You are asked to use the summary tables to answer these questions. Question 1 Using the flame test on a mixture of cations (2 to 8 of the cations on the list), are there any cations that would have an unmistakably positive test? If so, then which ions would have a dominant positive test? Question 2 If the flame test has a bright orange/yellow color, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations. Question 3 If the flame test has a bright red color, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations. Question 4 If the flame test has a bright violet color, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations. Question 5 If the flame test has no color change, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations. Question 6 If the pH test has a pH of 7, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations. Question 7 If the pH test has a pH of 3, then for each cation state if you are "certain it is present", "certain it is absent", or "uncertain". State for all eight cations.

Question 8 What reagent can precipitate a single cation from a mixture of all eight cations? State which cation is precipitated. Question 9 Followup from Question 8 With the ion removed from Question 8, cover that ion's column, answer this question. What reagent will precipitate the fewest cations, not zero cations? State which cations are precipitated. Question 10 Followup from Question 8 and 9 With the ion removed from Question 8 and 9, cover those ions' columns, answer this question. What reagent will precipitate the fewest cations, not zero cations? State which cations are precipitated. Question 11 If more ammonia, NH, is added to a buffer of ammonia-ammonium ion, is the solution still the buffer or is the solution an ammonia solution? Question 12 Followup from Question 8, 9 and 10 With the ion removed from Question 8, 9 and 10, cover those ions' columns, answer this question. What reagent will precipitate only one cation? State which cation is precipitated. Question 13 Followup from Question 8, 9, 10 and 12 With the ion removed from Question 8, 9, 10 and 12, cover those ions' columns, answer this question. Which cations remain? These cations cannot be precipitated. Question 14 One cation has the ability to convert into a molecule. Which cation can be converted into a molecule? What type of reagent would be needed to convert this cation into a molecule? This molecule can be classified by its chemical properties; what can it be classified as, besides a molecule/covalent?