college of science etermination of chloride ion concentration by titration ohr s ethod safety solutions eeded lab coats safety glasses and enclosed footwear must silver nitrate solution mol if possible ...
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...College of science etermination chloride ion concentration by titration ohr s ethod safety solutions eeded lab coats glasses and enclosed footwear must silver nitrate solution mol if possible dry g be worn at all times in the laboratory ag for hours c allow to cool accurately chromate needs prepared used weigh about solid dissolve it with care as is a known carcinogen m distilled water conical flas store causes staining skin brown bottle fabric chemical burns any spills should rinsed determination immediately otassium indicator approimately issolve cr mohr method introduction this determines slowly added precipitate forms burette containing cl agcl end point occurs when aq ions are precipitated then additional react potassium form redbrown red cro agcro can determine samples from many sources such seawater stream river estuary example here eample ph sample between p refer notes efer explanation acidic gravimetric eplanation or volhard olhard equipment needed uipment stand flask ml pipe...