Question

MOLARITY=0.02099 Experiment 7 Data and Calculation s: Analysis of an Unknown Chloride M Molarity of standard AgNO, solution п mL ml. ml Initial buret reading 9.8 mL -59 11-9 ml. Final buret reading Volame of AgNO, used to titrate sample ml. ml. ml. Moles of AgNO, used to titrate sample Moles of CT peesent in sample Volane of diluted chloride solution pipetted 10 mL. ml. mL. Total moles of CI in 100 ml, vol flask I concentration in diluted solation in volumetric flask м м Mean chloride concentration Standard deviation in chloride concentration .М Unknown 11

Answer 1

The calculation based on normal titration kinetics

Molarity of Standard AgNO3 Solution 0.02099 M II Initial Burette reading 0 mL 0 mL 0 mL Final burette reading 12.59 mL 11.9 mL 9.8 mL Volume of AgNO3 used to titrate sample (M1) 12.59 mL 11.9 mL 9.8 mL Moles of AgNO3 used to titrate sample (V1) 0.322 Moles 0.305 Moles 0.251 Moles Volume of diluted chloride solution pipetted 10 mL 10 mL 10 mL (M2) CI- concentration in diluted solution in 0.0264 M* 0.0206 M* 0.025 M* volumetric flask (V2) Total moles of Cl- in 100mL vol flash 0.0025 Moles 0.00206 Moles 0.00264 Moles Mean chloride concentration 0.024 M 3.026 x 10.6 Standard deviation *M1V1 M2V2