The absorbance of an equilibrium mixture containing FeSCN2 was measured at 447 nm and found to be 0.347. What is the equilibrium concentration of FeSCN2

The concentration is

Explanation:

From the question we are told that

     The absorbance is  

       The length is  

Generally absorbance is mathematically represented as

where is the molar absorptivity of  FeSCN2  with a value

 and   is the equilibrium concentration of FeSCN2

So  

substituting values

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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