Concept explainers
(a)
Interpretation:
The overall chemical equation and the standard potential has to be given when
Concept Introduction:
Voltaic cell or Galvanic cell:
A voltaic cell converts chemical energy into electrical energy.
It consists of two half cells. Each half cell consists of a metal and a solution of a salt of metal. Two half cells are connected by salt bridge.
Cell diagram of voltaic or galvanic cell is as follows.
(a)
Answer to Problem 18.95QE
The chemical equation and standard potential is given below:
Explanation of Solution
Half- cell reactions are given below:
Overall reaction is considered as a total reaction occurs at anode and cathode.
Half- cell reaction and overall reaction can be written as below:
The calculation of the
b)
Interpretation:
The overall chemical equation and the standard potential has to be given when
Concept Introduction:
Refer to (a)
b)
Answer to Problem 18.95QE
The chemical equation and standard potential is given below:
Explanation of Solution
Half- cell reactions are given below:
Overall reaction is considered as a total reaction occurs at anode and cathode.
Half- cell reaction and overall reaction can be written as below:
The calculation of the
b)
Interpretation:
The overall chemical equation and the standard potential has to be given when
Concept Introduction:
Refer to (a)
b)
Answer to Problem 18.95QE
The chemical equation and standard potential is given below:
Explanation of Solution
Half- cell reactions are given below:
Overall reaction is considered as a total reaction occurs at anode and cathode.
Half- cell reaction and overall reaction can be written as below:
The calculation of the
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Chapter 18 Solutions
Chemistry: Principles and Practice
- For each of the following reactions, determine the overall balanced electrochemical reaction, its standard electric potential, and the standard Gibbs energy of the reaction. aCo+F2Co2++2F bZn+Fe2+Zn2++Fe c Zn+Fe3+Zn2++Fe d Hg2++HgHg22+arrow_forwarda Calculate G for the following cell reaction: Tl(s)Tl+(aq)Pb2+(aq)Pb(s) The Gf for Tl+(aq) is 32.4 kJ/mol. b From G, calculate the standard cell potential for the cell reaction and from this, determine the standard potential for Tl2+(aq)+eTl(s).arrow_forwardFor each reaction listed, determine its standard cell potential at 25 C and whether the reaction is spontaneous at standard conditions. (a) Mn(s)+Ni2+(aq)Mn2+(aq)+Ni(s) (b) 3Cu2+(aq)+2Al(s)2Al3+(aq)+3Cu(s) (c) Na(s)+LiNO3(aq)NaNO3(aq)+Li(s) (d) Ca(NO3)2(aq)+Ba(s)Ba(NO3)2(aq)+Ca(s)arrow_forward
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