Formulas and EquationsPowerPoint PresentationSlide 3Slide 4Slide 5Slide 6CHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and EquationsGeneral Chemistry 101/102General Chemistry 101/102Laboratory ManualLaboratory ManualUniversity of North Carolina at WilmingtonUniversity of North Carolina at WilmingtonCHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and Equations•PurposePurposeTo learn the characteristic colors exhibited by ions To learn the characteristic colors exhibited by ions in solution.in solution.To practice writing chemical formulas and To practice writing chemical formulas and balanced chemical equations.balanced chemical equations.•Safety ConsiderationsSafety ConsiderationsRinse the contents of your spot plate into the Rinse the contents of your spot plate into the proper container in the fume hood using your wash proper container in the fume hood using your wash bottle.bottle.Thoroughly rinse your hands with plenty of water Thoroughly rinse your hands with plenty of water after handling any chemical reagent.after handling any chemical reagent.CHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and Equations•Procedure (Part 1)Procedure (Part 1)This exercise is done individually. Observe the This exercise is done individually. Observe the solutions that comprise Set 1. Record the name of the solutions that comprise Set 1. Record the name of the compound dissolved in each solution and the color of compound dissolved in each solution and the color of each solution.each solution.Write the formulas of the compounds dissolved in each Write the formulas of the compounds dissolved in each solution. Have your instructor check your work and solution. Have your instructor check your work and initial your data sheet.initial your data sheet.clear, colorless clear, colorless solutionsolutionSet 1Set 1CHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and EquationsRepeat the procedure of recording names and colors Repeat the procedure of recording names and colors and writing formulas for Sets 2 and 3.and writing formulas for Sets 2 and 3.Observe each of the four unknown solutions. Record Observe each of the four unknown solutions. Record the color of each solution and determine which ion(s) the color of each solution and determine which ion(s) could be responsible for the color of the solution.could be responsible for the color of the solution.•Procedure (Part 1)Procedure (Part 1)Set 2Set 2Set 3Set 3CHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and EquationsAdd 3 drops of NaCl solution to a Add 3 drops of NaCl solution to a well in your spot plate. Now, add 3 well in your spot plate. Now, add 3 drops of AgNOdrops of AgNO33 solution to the well solution to the well containing the NaCl solution. containing the NaCl solution. Record your observations.Record your observations.•Procedure (Part 2)Procedure (Part 2)spot platespot plateWrite a balanced chemical equation for the reaction Write a balanced chemical equation for the reaction you observed. Indicate the color of the precipitate.you observed. Indicate the color of the precipitate.AgNOAgNO33(aq)(aq) + NaCl + NaCl(aq)(aq) AgCl AgCl(s)(s) + NaNO + NaNO33(aq)(aq)(white)(white)Repeat the above procedure for the three remaining Repeat the above procedure for the three remaining reactions.reactions.CHM 101/102CHM 101/102Laboratory ManualLaboratory ManualLaboratory ManualFormulas and EquationsFormulas and EquationsUse the Use the Handbook of Chemistry and PhysicsHandbook of Chemistry and Physics to look to look up the up the crystalline formcrystalline form and and melting pointmelting point of each of each precipitate formed in your chemical reactions.precipitate formed in your chemical reactions.•Procedure (Part 2)Procedure (Part 2)Record the page numbers and Record the page numbers and edition of the edition of the HandbookHandbook you you used.used.Do Do NOTNOT make marks in the Handbook! make marks in the