Last term I carried out the following titrations.

Nov 2

Standardization of NaOH solution with KDA

Result: 0.09920 N

Nov 3

Determination of w/w% of citric acid, monohydrate

Result: 100.7%

Determination of w/w% of phosphoric acid

Result: 84.30%

Nov 4

Potentiometric titration

Determination of the normality of NaOH solution

Result: 0.09869N

Nov 7

Conductometric titrations

Determination of the normality of HCl solution

Result: 0.1000N (superb!)

Determination of w/w% of sodium acetate anhydrus

Result: 94.62%

Nov 8

Determination of w/w% of Tartaric acid

Result: 100.8%

Determination of w/w% of Tartaric acid in a sample

Result: 1.241% (my ONLY mistake: it was 1.267%)

Nov 9

Standardization of a AgNO3 solution following the European Pharmacopoeia (Mohr)

Result: 0.1005N

Determination of w/w% of NaCl (Fajans)

Result: 100.3%

Determination of w/w% of KBr (Fajans)

Result: 99.49%

Determination of w/w% of KI (Fajans)

Result: 99.17%

Nov 10

Determination of w/v% of NaCl in a sample (Mohr)

Result: 0.8458g/100mL

Determination of w/w% of NaCl in another sample (Vohlard)

Result: 98.16%

Nov 11

Standardization of a HClO4 solution in acetic acid with POTASSIUM ACID PHTHALATE

Result: 0.1008N

Determination of w/w% of lidocaine chloridrate, anhydrous (using the aforementioned HClO4)

Result: 100.6%

Determination of w/w% of alanine

Result: 99.93%

Nov 14

Standardization of CH3ONa solution with benzoic acid

Result: 0.1004N

Determination of w/w% of sulfamethoxazole with CH3ONa

Result: 100.1% (I was the best one!)

Nov 15

Standardization of KMnO4 with oxalic acid dihydrate

Result: 0.1007N

Standardization of a Na2S2O3 solution with the aforementioned KMnO4

Result: 0.1017N

Nov 16

Determination of w/v% of H2O2 in a sample with KMnO4

Result: 0.3274g/100mL

Determination of w/w% of CuSO4.5H2O with Na2S2O3

Result: 99.62%

Determination of w/w% of KIO3 with Na2S2O3

Result: 100.3%

Nov 17

Determination of w/v% of KIO3 in a sample with Na2S2O3

Result: 0.5650g/100mL

Standardization of an EDTA solution with CaCO3 (direct method)

Result: 0.1002M

Nov 18

Standardization of an EDTA solution with CaCO3 (using Eriochrome Black T)

Result: 0.1001M

Determination of w/w% of MgSO4.7H2O with the solution of EDTA already titrated

Result: 99.60%

Determination of w/w% of ZnO with EDTA

Result: 99.26%

Nov 21

Determination of w/w% of MgO with EDTA

Result: 98.64%

Determination of w/v% of CaCO3 in a sample with EDTA (using Eriochrome Black T)

Result: 1.962g/100mL

Then, we started spectrophotometric determinations.