CHEM 223 Lecture 1: DOC.PDF
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30 Sep 2016
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Related Questions
1)
How are the equilibrium constant and the standard cell potential of an oxidation-reduction reaction related?
a) They are not related. The equilibrium constant derives from enthalpy while reduction potential only deals with charge. |
b) Both are a function of the standard change in Gibbs free energy. |
c) Both are related to the amount of work that can be done by a reaction on its surroundings. |
d) Both are a function of the number of electrons transferred in the reaction. 2) Calculate the standard cell potential (Eâ) for the reaction X(s)+Y+(aq)âX+(aq)+Y(s) if K = 2.30Ã10â4. Express your answer to three significant figures and include the appropriate units. 3) Consider the reaction Mg(s)+Fe2+(aq)âMg2+(aq)+Fe(s) at 77 âC , where [Fe2+]= 3.80 M and [Mg2+]= 0.310 M . A) What is the value for the temperature, T, in kelvins? Express your answer to three significant figures and include the appropriate units. B) What is the value for n? Express your answer as an integer and include the appropriate units (i.e. enter mol for moles) |