8Now add silver nitrate to each tube NaINaBrNaClNaFNow add silver nitrate to each tube
9Added silver nitrate to each tube NaClNaFNaINaBrAdded silver nitrate to each tube
10NaCl + silver nitrate = sodium nitrate + silver chloride What could be causing theprecipitate in the tubes?Added silver nitrateGroup I has weak attractionto every – ion; Nitrate has weakattraction to every + ionSilver has strong attraction toiodine, bromine and chlorineions.NaINaBrNaClNaCl + silver nitrate = precipitateNaBr + silver nitrate = precipitateNaI + silver nitrate = precipitateNaCl + silver nitrate = sodium nitrate + silver chlorideLook at your solubility chart>Which one is the precipitate?
11Another reaction 1st add ammonium hydroxide to each of the tubes containing precipitates, then later addsodium thiosulfate to each one
121. Now add ammonium hydroxide to each tube. 2. Now add sodium I Br Cl FDissolvedI Br Cl F1.2.1. Now add ammoniumhydroxide to each tube.I Br Cl F2. Now add sodiumthiosulfateto each tube.Dissolved
13AgCl + ammonium hydroxide = precipitate dissolves…. AgBr + sodium thiosulfate = precipitate dissolvesAgI doesn’t dissolve with either solution.You can try to predict what the balanced equations might be.If you read the lab and look carefully you can write balancedequation for the reaction where AgCl dissolves and AgBr dissolves.However this is not absolutely required in the lab.