Question

The student diluted 50.00 mL of commercial bleaching solution to 250 mL in a volumetric flask, and titrated a 20-mL aliquot of the diluted bleaching solution. The titration required 35.46 mL of 0.1052M Na2S2O3 solution. A faded price label on the gallon bottle read $0.79. The density of the bleaching solution was 1.10 g/mL

Determine the volume of commercial bleaching solution present in the diluted bleaching solution titrated

Answer 1

the volume of (original) solution in the dilution?

50 mL to 250 mL.. 1/5 of original

20 mL of 250 mL .. 1/12.5

so, V=50 mL*(1/5)*(1/12.5)= 0.8 mL of original in dilution