Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. the acid dissociation constant of the 1,10-phenant

The acid dissociation constant of the 1,10-phenanthrolium ion (phen) was meeasured at different temperatures using spectroscopic methods. The...

70.2K

Verified Solution

Question

Chemistry

The acid dissociation constant of the 1,10-phenanthrolium ion(phen) was meeasured at different temperatures using spectroscopicmethods.

The values of pKa measured at 298K and 308K were 4.812 and4.731, respectively.

Part A:Calculate  ΔrGo at 298K.Express your answer in kJ/mol to three significant figures.

Part B:Calculate  ΔrGo at 308K.Express your answer in kJ/mol to three significant figures.​

Part C:Calculate  ΔrHo. Express youranswer in kJ/mol to three significant figures.​

Part D:Calculate  ΔrSo. Express youranswer in J/(K.mol) to three significant figures.​

Part E: Calculate the pKa of the acid at 359K.Express your answer to three significant figures​

Answer & Explanation Solved by verified expert
3.9 Ratings (583 Votes)
We know that pKa log Ka Given pKa 298 K 4812 Ka 298 K 10pKa 104812 15417105 pKa 308 K 4731 Ka 308 K 104731 18578105 A We know that G0    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Aluminum reacts with hydrochloric acid, but copper does not react with the acid. When a mixture...

Chemistry
Q

What learning principle is applied when an instructor compliments a student? Book: Instructors and their jobs...

Psychology
Q

What is the typical rate of seafloor spreading?20-25 centimeters per year1-5 millimeters per year1-5 meters...

Biology
Q

What is the best choice for cleaning lenses on a compound or dissecting microscope O...

Biology
Q

Example 2 The equation of a sound wave in air is given by p 0...

Physics
Q

33 A boat having a length of 3 metre and breadth 2 metre is floating...

Physics
Q

Find xif m22 1 28x and m2XVW 59x 1 V 2 1 W P

Geometry
Q

A dinghy is pulled toward a dock by a rope from the bow through a...

Calculus
Q

Presented below is information related to equipment owned by Wyman Company at December 31, 2020....

Accounting
Q

1-4 is complete and provided. Please help with numbers 5 and 6 below. ...

Accounting
Q

Tami Tyler opened Tamis Creations, Inc., a small manufacturing company, at the beginning of the...

Accounting
Q

write a detailed report on how portugal has increased its renewable energy capacity dduring march,...

Accounting