Reversible Reactions Lab Report

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Indiana University, Purdue University, Indianapolis *

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Chemistry

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Name Lydia Peterson Section Number Laboratory Instructor Date 10/27/2023 Reversible Reactions (All data belongs in your lab notebook) In the following table: "Effect on Reaction" should be recorded as a shift toward products or a shift toward reactants . "Ease of Shift" should be recorded as easy , moderate or difficult (relative). "Visual Evidence" might be things like more precipitate formed , or gas evolved , or changed color from red to blue Exp IncreasedEffect on ReactionEase of ShiftVisual Evidence 1 HCl gas formation particles dissolved shifts towards the left, reactants easy gases form whenever the HCl is added particles completely dissolve after HCl is gone 1 NaOH slightly warm particles are formed shifts towards the right, products moderate before adding NaOH there was no temp change in solution, after adding NaOH the solution became warm when holding tiny particles are formed in the solution after NaOH is added. 2 HCl more perc gathered at the bottom shifts towards the right, products moderate percipitation is formed after centrifuge and heavier layer is formed at bottom 2 NaOH particles with white perc slightly warm shifts towards the left, reactants moderate visibly white percipitation formed after centrifuge; temp becomes more warm when it is placed after and added. 3 HCl gas formation dissolves shifts towards the left, reactants moderate gas is formed when HCl is added it dissolves into the solution

3 KSCN no visible changes shifts toward the left, reactants easy no visible reactions happened 4 NH 3 blue with seagreen percipitation shifts towards the right, products difficult color goes from white, clear to a seagreen blue; eventually percipitates 4 HCl warm; less perc there is a layer on top shifts towards the right, products difficult warmer to touch when HCl is added; not as much percipitate added 5 HCl 12 M HCl--> purple color shifts towards the right, products difficult when HCl is added the solution goes from pink to purple when added 5 H 2 O adding distilled water-- > turns into a lighter pink shifts towards the left, reactants easy nothing major happens here since the solution is pink, the solution only turned a lighter pink when H2O was added 5 heat turns a dark purple shifts towards the right, products difficult when the solution is heated, the solution's color goes from a medium purple to a rich and darker purple 5 cold turns a light purple, shifts towards the right, products difficult when solution is put in ice, the solution's color goes from a medium purple to a light purple 6 NH 3 no clear change, shift towards the left, reactants easy no visible reactants happened 6 HCl warmer; smells better shifts towards the right, products moderate warmer; smells better

7 HCl 7 NaOH 8a HCl 8a NaOH 8b NaC 2 H 3 O 2 8b HCl 8b NaOH 9 HCl disapperance of perc, shifts towards the left, reactants moderate disapperance of perc 9 NaOH swirls and forms of perc, s shifts towards the left, reactants moderate swirls and forms of perc 10 HCl no major change, shifts towards the left, reactants easy no major changes when it was added 10 NaOH turned bright lime green, shifts towards the right, products difficult went from green to a bright lime green

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