When you add 2.0ml of 0.50 M S2O32- to the 2.0 ml of 0.10M silver nitrate,...

Free

60.1K

Verified Solution

Question

Chemistry

When you add 2.0ml of 0.50 M S2O32- to the 2.0 ml of 0.10Msilver nitrate, formation of Ag(S2O3)23- occured by equation Ag++2S2O32- <---->Ag(S2O3)23- Ecell increased even thoughformation of a solid was not observed.
a) Using the value Ecell = 0.70V, calculate the [Ag+] in thetest solution after equilibrium is reached.
b). Setup a reaction table for equation above and calculate theformation constant for Ag(S2O3)23- .
Show your calculations clearly.

Answer & Explanation Solved by verified expert

3.6 Ratings (349 Votes)

a) Ecell = -RT/nF lnK

K = [Ag(S2O3)2^3-]/[Ag+][S2O3^2-]^2

From the reaction,

[Ag(S2O3)2^3-] = 0.10 M x 2 ml/4 ml = 0.05 M

remaining [S2O3^2-] = (0.5 x 2 - 0.1 x 2 x 2)/4 = 0.15 M

Feed the values,

0.70 = -8.314 x 298/1 x 96485 (ln(0.05/[Ag+](0.15)^2))

[Ag+] = 1.54 x 10^12 M

b) Ag(S2O3)2^3- = 0.05 M

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Ag+Â Â Â +Â Â Â Â Â S2O3^2-Â Â Â Â Â -----> Ag(S2O3)2^3-

initialÂ Â Â Â Â Â Â Â Â Â 0.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.0Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â -

changeÂ Â Â Â Â Â Â 0.2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.2

EqÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â -Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.2

Kf = (0.2)/(0.6)^2 = 5.55 x 10^-1

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

When you add 2.0ml of 0.50 M S2O32- to the 2.0 ml of 0.10M silver nitrate,...

Free

60.1K

Verified Solution

Question

Chemistry

Answer & Explanation Solved by verified expert

Get Answers to Unlimited Questions

Membership Benefits:

Other questions asked by students

Electrochemistry - Standart Potential 1. For the voltaic cell shown, calculate the Eocell. St. Red. Pot. (V) Hg2Cl2/Hg 0.34 Cu2+/Cu+ 0.16 Hg(l), Hg2Cl2(s)...

Which of the following events would occur during a blood transfusion reaction? NOTE: Select all...

In AABC m A 3x 1 x 14 and m B m C 4x 5...

1 28 36 Excerpts from Hulkster Company s December 31 2024 and 2023 financial statements...

Graphing Linear Equations by plotting points Complete the table below for the equation y 2x...

Simplify x xy A x y7 B x 2 C x5y7 D x5 2

12 Months Ended Consolidated Statements of Income...

1. Case: Eldon D. \& Mary Alice Brinley a) In what court did the Case...

Mark Welsh deposita $7,200 en una cuenta que gana inters a una tasa anual de...

Your next-door neighbor recently began a new job as assistant controller for Conundrum Corporation. As...

The assets of Star Company are $ 200 comma 000 and the total liabilities are...

1 pts Rachel McGovern bought a 20-year bond for $880.77 four years ago. The bond...