Several solutions of nickel (ii) sulfate ranging from 1.00m to 0.200 m are exposed to light in a colorimeter and their absorbance is recorded in a beer-lambert law experiment. why does a solution of nickel(ii) sulfate represent a suitable solution to be studied in this experiment, whereas similar solutions of sodium chloride do not?

The solution of is green in color but a solution of sodium chloride is colorless that is why represent a suitable solution.

Explanation:

The Beer-Lambert law represents the linear relationship between concentration and absorbance of an absorbing species according to the formula as follows.

where A = absorbance

            = molar absorptivity

          l = length

          c = concentration

It is known that solution is green in color whereas sodium chloride solution is colorless. As a function of concentration, the solution of sodium chloride do not vary in absorbance.

Therefore, it is concluded that solution of is green in color but a solution of sodium chloride is colorless that is why represent a suitable solution.

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