lab 8 in lab

lab 8 in lab - Data Tables and In-Lab Questions Data Table...

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

View Full Document Right Arrow Icon
Data Tables and In-Lab Questions Data Table A. Titration of KHP Concentration of KHP solution .2117 M Volume of KHP solution titrated 20.00 mL Concentration of NaOH solution .2066 M Calculated V eq of NaOH solution 20.49 mL Question 2a. From your titration curve, what is the experimental V eq for your KHP titration? Label the V eq on each copy of your KHP titration curve. Do not forget to subtract the initial buret reading when determining your V eq . V eq = 20.00 mL Question 2b. What is the percent difference between your theoretical and experimental equivalence volumes? % Difference = ((Calculated - Measured)*100)/Calculated % Difference = 2.391 % Data Table E (C in new manual). Calculated vs Measured pH's for KHP Titration mL of 0.20 M NaOH added Calculated pH (From prelab) Measured pH (From titration curve) 0.00 4.179 5.93 10.00 5.408 5.48 15.00 5.885 5.33 20.00 9.204 5.23 22.00 11.979 5.47
Background image of page 1

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

View Full DocumentRight Arrow Icon
Question 3a. What is the experimental pK a value for hydrogen phthalate (HP 1- or HC 8 H 4 O 4 1- ) that your found at the midpoint of your KHP titration curve? Label the pK
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/18/2011 for the course CHEM 202 taught by Professor Feducia during the Spring '09 term at N.C. State.

Page1 / 4

lab 8 in lab - Data Tables and In-Lab Questions Data Table...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online