what is the calculated value of the cell potential at 298k for an electrochemical cell with the following reaction, when the cu2+ concentration is 2.32×10-4 m and the mn2+ concentration is 1.04 m ?
cu2+(aq) + mn(s) cu(s) + mn2+(aq)

the cell reaction as written above is spontaneous for the concentrations given: (true/false)

The correct answer is true.

Explanation:

The given cell is:

Half reactions for the given cell follows:

Oxidation half reaction:

Reduction half reaction:

Net reaction:

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the of the reaction, we use the equation:

Putting values in above equation, we get:

where,

= electrode potential of the cell = ?V

= standard electrode potential of the cell = +1.52 V

n = number of electrons exchanged = 2

Putting values in above equation, we get:

As, the EMF of the cell is coming out to be positive. Thus, the cell reaction is spontaneous for the given concentration.

Hence, the correct answer is true.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.