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 17.9 35.0 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.

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 17.9 35.0 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.

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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