Austin Community College Chemistry Chem 1111 Pre-Lab Assignment Solution Sleuth
ID: 497835 • Letter: A
Question
Austin Community College Chemistry Chem 1111 Pre-Lab Assignment Solution Sleuth Name For a large mixing matrix, such as the ten solution matrix you will solve in lab, knowing the identity of at least one of the solutions in each two solution mixture is extremely helpful. Before you start mixing, you will be able to identify one of the solutions by simple observation. Which one can be identified by color? HCI H2SO4 NaOH Al(NO3)3 SbCl3 in HCl NH3 You will be able to identify additional solutions based on their reactions with the one solution should be mixed, series of two-solution mixtures, with each of the other nine. which ofthe following solutions should be positively identified in this, first, mixing round? (select multiple answers if multiple solutions can be identified) HCI H2SO4 NaOH Al(NO3)3 Sbols in HCl NH3 It is not necessary to continue testing any solution that has been positively identified. How many test tubes will be needed for the second mixing ro choose one of the newly identified solutions to mixed, in a new series of two solution combinations, with each of the remaining unknown solutions. Which one of newly identified known solutions will, if it is chosen for the known solution in the second mixing help positively identity the FEWEST additional solution(s)? HCI H2SO4 NaOH Al(NO3)3 SbC13 in HC NH3 Assuming you are using a strategy that maximizes the number of new identifications in each round, How many test tubes will be required for the THIRD mixing round each of the remaining unidentified unknowns? At this point you should have identified the AgN solution. If AgNOs is used as the known solution in the third mixing round, how many additional solution (s) can be positive identified using only the data from the third mixing round?Explanation / Answer
Al(NO3)3 is solid . All others are liquid . So, Al(NO3)3 can be identified
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You will be able to identify NaOH and H2SO4 by its reaction with Al(NO3)3
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four test ubes are required
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SbCl3 in HCl
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