Q4.In this experiment, we add hydrochloric acid to our unknown sodium hydroxide solution during thetitration. Sketch a sample pH curve showing how the pH of the titrated solution changes as we add moretitrant. Be sure to label both axes of your graph and indicate the position of the equivalence point.C10 p ConQ5 You initially begin with a 0.1593 M hydrochloric acid solution. If you had a 125.0 mL sample of thishydrochloric acid solution, how many grams of HCl would be present in the sample? Show all work.Yourde toblQ6Write out a stepwise procedure (list of numbered steps) that you plan to execute when you cometo lab to do the titration. (You instructor will review and offer feedback in person; you must have a writtenprocedure before you can start the in-person portion of the final). You can assume you have access to thefollowing equipment:buret/ring stand and buret clamp25 mL graduated cylinderpipet pump150 mL beaker (for waste)distilled water50 mL buret125 mL Erlenmeyer flasks0.1593 M HCl solutionmethyl red indicatorpH calibration bufferspH probe and LabQuestfunnel10 mL volumetric pipetunknown NaOH solution

Since you have asked multiple questions, we will answer first question for you. In order to get other questions answered, kindly post other questions separately. Answer 4 The solution in titration flask is NaOH. It is a strong base, so, its pH will be above 7. HCl is a strong acid. It will tend to decrease the pH when added to NaOH solution. At equivalence point, moles of acid added will be equal to moles of base present. The pH at this point will be exactly 7. Addition of HCl after that will decrease the pH below 7. The sample pH titration curve will have pH on y-axis and volume of HCl on x-axis. It will be as shown below: The point at which line from pH 7 intersects the curve is equivalence point and corresponding volume of HCl added will be equivalence point volume.

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Chemistry

Q4. In this experiment, we add hydrochloric acid to our unknown sodium hydroxide solution during the titration. Sketch a sample pH curve showing how the pH of the titrated solution changes as we add more titrant. Be sure to label both axes of your graph and indicate the position of the equivalence point.

Q4. In this experiment, we add hydrochloric acid to our unknown sodium hydroxide solution during the titration. Sketch a sample pH curve showing how the pH of the titrated solution changes as we add more titrant. Be sure to label both axes of your graph and indicate the position of the equivalence point.

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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