Determination of Nicotine in Tobacco

EXPERIMENT 4 DETERMINATION OF NICOTINE IN TOBACCO RESULTS standardisation OF APPROXIMATELY 0.025M PERCHLORIC ACID section/Compound| Molecular incubus(g/mol)| erroneousnesss(g/mol)| Error of analytical isotropy(g)| 8C| 96.0856| 0.0005| 0.0001| 5H| 5.0397| 0.0004| | K| 39.0983| 0.0006| | 4O| 63.9976| 0.0002| | KHP| 204.2212| 0.0005| | Errors(g/mol) = misplay of molecular exercising weight X coefficient ?3 For example: Error ampere-second = 0.0008g/mol *8 = 0.00046188 = 0.0005g/mol ?3 Titration of KHP by Perchloric acid. Flask calculate| initial volume(mL)| Correction initial volume| Initial volume + airfield| terminal volume (mL)| Correction final volume| terminal volume + correction| Total volume(mL)| 1| 0.04| 0.0004| 0.0404| 25.3| 0.037| 25.337| 25.2966| 2| 25.3| 0.037| 25.337| 47.32| 0.056| 47.376| 22.039 | 3| 1.19| 0.0045| 1.1945| 23.02| 0.036| 23.056| 21.8615| Calculation for the concentration of perchloric acid Flask number| plenty of KHP(g)| number of moles KHP(mol)| Error number of moles(mol)| Concentration of perchloric acid(M)| 1| 0.1049| 0.000513659| 0.001| 0.02| 2| 0.1044| 0.00051121| 0.001| 0.02| 3| 0.103| 0.000504355| 0.001| 0.02| add together of moles KHP(mol) = down molecular weight frame of moles flask 1 = mass = 0.1049g = 0.0005mol molecular weight 204.22g/mol Error number of moles KHP = ?(error analytical balance/mass flask1)^2 + (error molecular weight/molecular weight)^2 Number of moles KHP = number of moles perchloric acid * Concentration of perchloric acid = number of moles KHP X 1000 ! hoi polloi perchloric acid * Concentration of perchloric acid in flask...If you essential to get a full essay, order it on our website: BestEssayCheap.com

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