In an analytical laboratory that analyzes BOD, the titrant solution of sodium thiosulphate the help of a standard potassium dichromate solution. This is an oxidation and reduction 6 KI + 14 HCI + K,Cr,0,- 2 Crcl, + 3 1, +7 H,0 + 8 KCI 2 Na,s,0, + 1,- Na,s,0, +2 Nal Given the standardization data in the table below, determine the missing values as indica Number of volume of 0.1065 Volume of Na,S,0, used Standardized concentration Observation M K,Cr,0,, mL to titrate K,Cr,0, mL of Na,s,0,. M 01 10.0 6.65 ? 02 10.0 7.10 ? 03 10.0 6.80 ? 04 10.0 7.00 ? Mean: ? Standard deviation:

In an analytical laboratory that analyzes BOD, the titrant solution of sodium thiosulphate the help of a standard potassium dichromate solution. This is an oxidation and reduction 6 KI + 14 HCI + K,Cr,0,- 2 Crcl, + 3 1, +7 H,0 + 8 KCI 2 Na,s,0, + 1,- Na,s,0, +2 Nal Given the standardization data in the table below, determine the missing values as indica Number of volume of 0.1065 Volume of Na,S,0, used Standardized concentration Observation M K,Cr,0,, mL to titrate K,Cr,0, mL of Na,s,0,. M 01 10.0 6.65 ? 02 10.0 7.10 ? 03 10.0 6.80 ? 04 10.0 7.00 ? Mean: ? Standard deviation:

Chemistry

10th Edition

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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