Question

In: Chemistry

This is part of a redox titration lab "additional calculations, which focus on the orginal 10.00...

This is part of a redox titration lab

"additional calculations, which focus on the orginal 10.00 mL sample of bleach.

7. Find the #of moles of CIO- in the original 10 mL sample of bleach

8. Find the mass of NaCIO in the original 10 mL sample of bleach

9. Find the total mass of the original 10 mL sample

Solutions

Expert Solution

This question is data deficient, you should given volume of hypo (sodium thiosulfate) solution used. Whatever I give idea to calculate above result by using following calculations.

Calculations to determine percent solution of NaClO in bleach:

(part A) X moles of Thiosulfate (S2O3 2-) = (volume of Na2S2O3 titrated in liters) * (number of moles used of Na2S2O3) (1 molS2O3 2- = 1 mol Na2S2O3)

(part B) X moles of I2 Produced = (Part A)/2 (2 mol S2O3 = 1 mol I2)

(part C) x moles of ClO- ion = (part B) (1 mol ClO- = 1 mol I2)

(part D) x mass (in grams) of NaOCl = (part c) *74.44g (molecular weight sodium thiosulfate. 1 mole ClO- = 1 mole NaOCl)


Related Solutions

For the titration, 10.00 mL of a 2.00 M hydroiodic acid solution was added to a...
For the titration, 10.00 mL of a 2.00 M hydroiodic acid solution was added to a beaker. The buret was filled with a 0.500 M barium hydroxide solution. What is the pH of the solution if 10.00 mL of the base were added? (0.301 but why?) What is the pH of the solution if 20.00 mL of the base were added? What is the pH of the solution if 30.00 mL of the base were added?
Determination of iron by redox titration What error (+, - or 0) is introduced in the...
Determination of iron by redox titration What error (+, - or 0) is introduced in the % Fe in the unknown and briefly explain why in each case. (a) The permanganate solution becomes contaminated with organic matter before standardization. (b) The original KMnO4 solution contained some MnO2 that was not filtered out. (c) The sodium oxalate was not totally dry when it was weighed out. (d) The unknown had some of its iron already oxidized to Fe3+.
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500...
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)? The Ka for HOCl is 3.0 x 10-8 M. What is the pH after 6.20 mL of NaOH are added? What is the pH after 9.40 mL of NaOH are added? What is the pH when half the acid has been neutralized? What is the pH after 18.90 mL of NaOH...
To standardize a solution of KMnO4 for a redox titration, 0.3926 g of dry oxalic acid...
To standardize a solution of KMnO4 for a redox titration, 0.3926 g of dry oxalic acid ( molar mass = 90.03488 g/mol; ignore buoyancy correction) is added to an Erlenmeyer flask and dissolved in excess 1 M H2SO4. The intensely puruple titrant (KMNO4) reacts with the standard to form a clear solution UNTIL the endpoint at 36.24 mL, where the first hint of purple is persistent in the flask. Another titration using 1 M H2SO4 and no oxalic acid requires...
(Redox) Titration Problem Testing for the concentration of ozone dissolved in water can be accomplished by...
(Redox) Titration Problem Testing for the concentration of ozone dissolved in water can be accomplished by titrating a known volume of the solution to be tested a with standardized potassium bromide solution. The reaction that takes place forms oxygen gas and the bromate ion which can be detected spectroscopically. In a particular experiment, a 25.00 mL ozone containing solution was titrated with 37.41 mL of 0.3290 M potassium bromide. Determine the concentration of ozone in the original solution. *Please show...
Part A If the following elements were involved in redox reactions, which noble-gas configuration would they...
Part A If the following elements were involved in redox reactions, which noble-gas configuration would they most likely attain? Drag the appropriate elements to their respective bins. Elements: Be, Na, N, P, Sc, As, Rb Bins: He, Ne, Ar, Kr Part B An unknown element, X, reacts with lithium to form the compound Li2X. In other compounds this element also can accommodate up to 12 electrons rather than the usual octet. What element could X be? a. Mg b. O...
Describe the additional risks undertaken by firms pursuing a focus strategy
Describe the additional risks undertaken by firms pursuing a focus strategy
MA 117 Lab 1 In this lab, you will need to write equations, perform calculations, and...
MA 117 Lab 1 In this lab, you will need to write equations, perform calculations, and make judgements. All equations and calculations should be included in your lab write-up. All judgements should be explained and justified in complete sentences referencing your calculations. Hospital Administration Southwest Hospital has an operating room used only for eye surgery. The annual cost of rent, heat, and electricity for the operating room and its equipment is $360,000, and the annual salaries of the people who...
Consider the titration of 10.00 mL of 0.10 M acetic acid (CH3COOH) with 0.10 M NaOH...
Consider the titration of 10.00 mL of 0.10 M acetic acid (CH3COOH) with 0.10 M NaOH a. What salt is formed during this reaction? b. do you expect the salt solution at the equivalence point to be acidic, neutral, or basic? Calculate the pH of this solution at the equicalence point.
Consider titration of 10.00 mL of 0.120 M Cu2+ solution with 0.100 M EDTA at pH...
Consider titration of 10.00 mL of 0.120 M Cu2+ solution with 0.100 M EDTA at pH 10.0. Find the concentration of free Cu2+ at the equivalence point of this titration.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT