Clorox A-1 Mass of 10 mL 9.697 g 10.72 g Density .9697 g/mL 1.072 g/mL Avg densi

Question

Clorox

A-1

Mass of 10 mL

9.697 g

10.72 g

Density

.9697 g/mL

1.072 g/mL

Avg density

1.021 g/mL

1.021 g/mL

Vol of diluted bleach

10 mL

10 mL

Vol of Na2S2O3

12.7 mL

12mL

Moles of Na2S2O3

.0014 mol

.00124 mol

Calculate the molarity of the diluted aliquot of bleach, the concentrated bleach solution and mass% of the bleach solutions.

Calculate average, average deviation, and the percent error.

Clorox

A-1

Mass of 10 mL

9.697 g

10.72 g

Density

.9697 g/mL

1.072 g/mL

Avg density

1.021 g/mL

1.021 g/mL

Vol of diluted bleach

10 mL

10 mL

Vol of Na2S2O3

12.7 mL

12mL

Moles of Na2S2O3

.0014 mol

.00124 mol

Explanation / Answer

The molarity of the commercial bleach solution is 0.516 M. There are 0.516 moles ofcommercial bleach per liter of solution. This molarity of the commercial bleach solution will beused to find its mass and percent mass of NaClO.5.Assume the density of the commercial bleach is 1.08 g/mL. Calculate the average percentby mass of NaClO in the commercial bleach.Unknown:The percent concentration by mass of NaClO in the school’s degrading commercial bleachsolution is 3.56%. For every one hundred grams of the commercial bleach solution, there are3.56 grams of NaClO.Error Analysis:6.From the label information of the commercial bleach, calculate the average deviation ofthe three titration values.Trial 1:= 0.0 mLTrial 2:= 0.0 mLTrial 3:= 0.1 mL

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