A 28.40-mL sample of liquid bleach (contains NaOCI; 74.44 g/mol) was diluted to a final volume of 1,899.8 mL. A 40.16-mL aliquot of the diluted sample was transferred into an Erlenmeyer flask and treated with excess KI to oxidize the OCI to Cl2 and producing l2. The liberated l2 intermediate as determined by titrating with 0.1357 M NazS203 and required 15.51 mL to reach a starch indicator endpoint. A blank correction of O.04 mL was required. Calculate the % w/v NaOCI in the original sample of bleach. Provide your answer to two places after the decimal point and without units. Reactions: 20C1- + 21- + 4H+ → I, + Cl2 + 2H20 I2 + 2S20- 21- + S40?-
A 28.40-mL sample of liquid bleach (contains NaOCI; 74.44 g/mol) was diluted to a final volume of 1,899.8 mL. A 40.16-mL aliquot of the diluted sample was transferred into an Erlenmeyer flask and treated with excess KI to oxidize the OCI to Cl2 and producing l2. The liberated l2 intermediate as determined by titrating with 0.1357 M NazS203 and required 15.51 mL to reach a starch indicator endpoint. A blank correction of O.04 mL was required. Calculate the % w/v NaOCI in the original sample of bleach. Provide your answer to two places after the decimal point and without units. Reactions: 20C1- + 21- + 4H+ → I, + Cl2 + 2H20 I2 + 2S20- 21- + S40?-
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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