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Trial final burette reading (mL) initial burette reading (mL) volume of NaOH(aq) added (mL) colour at endpoint #1 #2 #3 #4 17.935.0 22.9 40.1 0.3 17.9 5.9 22.9 blue green green greer a) Select the most consistent trials and calculate the

Trial final burette reading (mL) initial burette reading (mL) volume of NaOH(aq) added (mL) colour at endpoint #1 #2 #3 #4 17.935.0 22.9 40.1 0.3 17.9 5.9 22.9 blue green green greer a) Select the most consistent trials and calculate the

Chemistry
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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The following table shows data from the titration of four 10.0 mL samples of a solution containing hydrochloric acid, HCl(aq), using a 0.242 mol/L sodium hydroxide standard solution. Bromothymol blue is used as an indicator to detect when the endpoint is reached. Titration of 10.0 mL HCl(aq) with 0.242 mol/L NaOH(aq) Trial final burette reading (mL) initial burette reading (mL) volume of NaOH(aq) added (mL) colour at endpoint #1 #2 #3 #4 17.935.0 22.9 40.1 0.3 17.9 5.9 22.9 blue green green green a) Select the most consistent trials and calculate the average volume of titrant added. b) Calculate the concentration of the hydrochloric acid solution. Hint: Write a balanced chemical reaction first. You MUST show your work in the space provided. Then, record your final answers with the correct number of significant digits and the proper units.
Transcribed Image Text:The following table shows data from the titration of four 10.0 mL samples of a solution containing hydrochloric acid, HCl(aq), using a 0.242 mol/L sodium hydroxide standard solution. Bromothymol blue is used as an indicator to detect when the endpoint is reached. Titration of 10.0 mL HCl(aq) with 0.242 mol/L NaOH(aq) Trial final burette reading (mL) initial burette reading (mL) volume of NaOH(aq) added (mL) colour at endpoint #1 #2 #3 #4 17.935.0 22.9 40.1 0.3 17.9 5.9 22.9 blue green green green a) Select the most consistent trials and calculate the average volume of titrant added. b) Calculate the concentration of the hydrochloric acid solution. Hint: Write a balanced chemical reaction first. You MUST show your work in the space provided. Then, record your final answers with the correct number of significant digits and the proper units.
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