part 2 22spontaneousrequiredAG> 0 (t)e not accurequired AGO(t)eea energy produces) free energystant (96,485 C/mol) Excell = N/= 15/2.KAnneadaentratme polentrallectrolytic cell barriers wheretrering concen-tions on 2 staes.of barrie, crtion solu tod cell ionSection III-Select the correct answer:Zn(s)-75²²(21)anode'indFluorine-18 is a radioactive isotope commonly used in medicine. It has a half-life of 110 minutes. What is theactivity (in Curies) of a 18F sample that has a mass of 3.46 x 10* g?(A)19714(B)329(C)5914(D)668(E)311(22)A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²+ at the anodeis 6.81 x 107 M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecell?(A)0.24 V(B)-0.18 V(C)0.18 V(D)-0.34 V(E)0.43 V7daxJefe45.NIV3WTheNewор по аша алош Ло[u><Sd aul jumo anoиел әр!м1

In part 2 we have to calculate Ecell

(22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²* at the anode is 6.81 x 10' M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecea? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V

(22) A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²* at the anode is 6.81 x 10' M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecea? (A) 0.24 V (B) -0.18 V (C) 0.18 V (D) -0.34 V (E) 0.43 V

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter24: Coulometry

Section: Chapter Questions

Problem 24.5QAP: What cathode potential (versus SCE) would be required to lower the total Hg(II) concentration of the...

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Question

part 2

2
2
spontaneous
required
AG> 0 (t)e not accur
equired AGO(t)e
ea energy produces) free energy
stant (96,485 C/mol) Excell = N/= 15/2
.K
Anneada
entrat
me polentral
lectrolytic cell barriers where
trering concen-tions on 2 staes.
of barrie, cr
tion solu to
d cell ion
Section III-Select the correct answer:
Zn(s)-75²²
(21)
anode'
ind
Fluorine-18 is a radioactive isotope commonly used in medicine. It has a half-life of 110 minutes. What is the
activity (in Curies) of a 18F sample that has a mass of 3.46 x 10* g?
(A)
19714
(B)
329
(C)
5914
(D)
668
(E)
311
(22)
A concentration cell running at 25°C consists of two Pb (s)/Pb2+ cells. If the concentration of Pb²+ at the anode
is 6.81 x 107 M and the concentration of Pb²+ at the cathode is 1.55 M, what is the value of Ecell?
(A)
0.24 V
(B)
-0.18 V
(C)
0.18 V
(D)
-0.34 V
(E)
0.43 V
7
dax
Jefe
45.
NIV
3W
The
New
ор по аша алош Ло[u><
Sd aul jumo ano
иел әр!м
1

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