A strip of copper metal is placed in an aqueous sodium chloride solution. According to the standard reduction potential below, w
hich of the following would be observed A. No reaction occurs B. Bubbles of gas would be observed C. A blue color would form in the solution D. Crystals of copper (II) chloride would form on the strip of copper
The answer to A strip of copper metal is placed in an aqueous sodium chloride solution. According to the standard reduction potential below, is Option A) No reaction occurs
Explanation:
Aqueous sodium chloride solution is similar to salt and water mixed together.
Copper doesn’t dissolve in salty water. However, exposure of the metal to air and then to water results in an oxide layer on the surface of copper which is referred: the dull reddish brown copper(I) oxide and this exists in an equilibrium with the outer oxide layer of black copper(II) oxide.
If you put a strip of copper metal is placed in an aqueous sodium chloride solution, you will not observe any reaction because the oxide layer on the surface of copper is too thin for to be noticed other than by a dulling or darkening of the surface, not thick enough to be obvious.
The Beer-Lambert law states that the quantity of light absorbed by a substance dissolved in a fully transmitting solvent is directly proportional to the concentration of the substance and the path length of the light through the solution.
