In Part 1 you will weigh out 3 samples of FAS standard (M.Wt 392.13), and titrate them to determine the exact concentrat
Posted: Thu Jun 30, 2022 6:17 pm
In Part 1 you will weigh out 3 samples of FAS standard (M.Wt392.13), and titrate them to determine the exact concentration ofyour periodate standard to 4 significant figures. Here is yourdata:Your first FAS sample weighed 0.7235 grams.The burette starting volume was 1.95 mLsThe burette reading at the titration end pointwas 20.4 mLs.Calculate your periodate concentration.Your second FAS sample weighed 0.7228 grams.The burette starting volume was 1.83 mLsThe burette reading at the titration end pointwas 20.27 mLs.Calculate your periodate concentration.Your third FAS sample weighed 0.7424 grams.The burette starting volume was 1.65 mLsThe burette reading at the titration end pointwas 20.59 mLs.Calculate your periodate concentration.Calculate and report your average periodate concentration.
In Part 3 you will weigh out 3 samples of unknown sample, andtitrate them to determine the exact concentration of your periodatestandard to 4 significant figures. Here is your data:Your first unknown sample weighed 1.0263 grams.The burette starting volume was 2.88 mLsThe burette reading at the titration end pointwas 20.33 mLs.Calculate your unknown concentration in units of wt%.Your second unknown sample weighed 1.0459 grams.The burette starting volume was 2.77 mLsThe burette reading at the titration end pointwas 20.56 mLs.Calculate your unknown concentration in units of wt%.Your third unknown sample weighed 1.0235 grams.The burette starting volume was 1.73 mLsThe burette reading at the titration end pointwas 19.53 mLs.Calculate your unknown concentration in units of wt%.Calculate and report the average Fe wt% in your unknown sample.
In Part 3 you will weigh out 3 samples of unknown sample, andtitrate them to determine the exact concentration of your periodatestandard to 4 significant figures. Here is your data:Your first unknown sample weighed 1.0263 grams.The burette starting volume was 2.88 mLsThe burette reading at the titration end pointwas 20.33 mLs.Calculate your unknown concentration in units of wt%.Your second unknown sample weighed 1.0459 grams.The burette starting volume was 2.77 mLsThe burette reading at the titration end pointwas 20.56 mLs.Calculate your unknown concentration in units of wt%.Your third unknown sample weighed 1.0235 grams.The burette starting volume was 1.73 mLsThe burette reading at the titration end pointwas 19.53 mLs.Calculate your unknown concentration in units of wt%.Calculate and report the average Fe wt% in your unknown sample.