lab 6 inlab - Data Table A Calculated and Measured pH's of...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Data Table A. Calculated and Measured pH's of Acid and Base Mixtures Reaction # Reagents Calculated pH Measured pH 1 10 mL H 2 O 7.00 7.35 + 5 mL NaOH 12.52 12.44 + additional 5 mL NaOH 12.70 12.65 + additional 5 mL NaOH 12.78 12.74 2 10 mL HCl 1.00 1.18 + 5 mL NaOH 1.48 1.66 + additional 5 mL NaOH 7.00 6.89 + additional 5 mL NaOH 12.30 12.18 3 10mL NH 4 Cl 5.13 5.93 + 5 mL NaOH See question 4c. 9.45 + additional 5 mL NaOH -------- 11.04 + additional 5 mL NaOH -------- 12.30 4 10 mL NaC 2 H 3 O 2 8.87 8.95 + 5 mL NaOH See question 6c. 12.50 + additional 5 mL NaOH -------- 12.68
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
+ additional 5 mL NaOH -------- 12.75 Question 4a. Complete the reaction table for the mixture of 10.0 mL of 0.10 M NH 4 Cl with 5.0 mL of 0.10 M NaOH below. All entries should be in millimoles . Report all values to one decimal place. NH 4 1+ (aq) + OH 1- (aq) NH 3 (aq) + H 2 O initial 1.0 0.5 0 -.5 -.5 .5 final .5 0 .5 Question 4b. Calculate the equilibrium concentrations of each of the following in the resulting solution. Report all values to two signigicant figures. Species Final Concentration (M) [NH 4 1+ ] .033 [OH 1- ] 1.8e-5 [NH 3 ] .033 [H 3 O 1+ ] 5.6e-10 Question 4c. Based on your results above and using the Henderson-Hasselbalch equation,
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern