The elements which are easier to oxidize compared to H 2 (g) have to be identified. a)Cu d)Ag b)Zn e)Cr c)Fe Concept introduction: Under certain conditions a cell potential is measured it is called as standard potential (E cell o ) . Standard potential (E cell o ) can be calculated by the following formula. E cell o =E cathode o -E anode o The E cell o value is positive, the reaction is predicted to be product favoured at equilibrium. The E cell o value is negative, the reaction is predicted to be reactant favoured at equilibrium. Electrochemical series: It is a decreasing order of the reduction potentials. The most positive E 0 are placed in the top in the electrochemical series, it has greater tendency for reduction and lower tendency of oxidation. And the most negative E 0 values of elements are placed in the bottom of the series.
The elements which are easier to oxidize compared to H 2 (g) have to be identified. a)Cu d)Ag b)Zn e)Cr c)Fe Concept introduction: Under certain conditions a cell potential is measured it is called as standard potential (E cell o ) . Standard potential (E cell o ) can be calculated by the following formula. E cell o =E cathode o -E anode o The E cell o value is positive, the reaction is predicted to be product favoured at equilibrium. The E cell o value is negative, the reaction is predicted to be reactant favoured at equilibrium. Electrochemical series: It is a decreasing order of the reduction potentials. The most positive E 0 are placed in the top in the electrochemical series, it has greater tendency for reduction and lower tendency of oxidation. And the most negative E 0 values of elements are placed in the bottom of the series.
Solution Summary: The author explains the electrochemical series, which is a decreasing order of the reduction potentials.
The elements which are easier to oxidize compared to H2(g) have to be identified.
a)Cu d)Agb)Zn e)Crc)Fe
Concept introduction:
Under certain conditions a cell potential is measured it is called as standard potential (Ecello).
Standard potential (Ecello) can be calculated by the following formula.
Ecello=Ecathodeo-Eanodeo
The Ecello value is positive, the reaction is predicted to be product favoured at equilibrium.
The Ecello value is negative, the reaction is predicted to be reactant favoured at equilibrium.
Electrochemical series:
It is a decreasing order of the reduction potentials. The most positive E0 are placed in the top in the electrochemical series, it has greater tendency for reduction and lower tendency of oxidation. And the most negative E0 values of elements are placed in the bottom of the series.
Which member of each pair of metals is more likely to corrode (oxidize)?
(a) Mg or Ca
(b) Au or Hg
(c) Fe or Zn
(d) Ag or Pt
Based on the information shown in the attached image, which of the following statements are CORRECT?
(I) Hydrogen is the best reducing agent in acid solution.
(II) Hydrogen is the best reducing agent in basic solution.
(III) Oxygen is the best oxidizing agent in acid solution.
(IV) Oxygen is the best oxidizing agent in basic solution.
20.77 A 1 M solution of AgNO3 is placed in a beaker with a strip
of Ag metal. A 1 M solution of Cu(NO3)2 is placed in a
second beaker with a strip of Cu metal. A salt bridge con-
nects the two beakers, and wires to a voltmeter link the two
metal electrodes. (a) Which electrode serves as the anode,
and which as the cathode? (b) Which electrode gains
mass, and which loses mass as the cell reaction proceeds?
(c) Write the equation for the overall cell reaction. (d) What
is the emf generated by the cell under standard conditions?
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell