(i) A simultaneous determination for cobalt and nickel can be based on absorption by    their respective 8 hydroxyquinolmol complexes. Molar absorption corresponding to their                absorption maxima are as follows.

Molar absorptivity ,
	365nm	700nm
Co	3529	428.9
Ni	3228	10.2

Calculate the molar concentration of nickel and cobalt in each of the following solutions using the following data.                

Absorbance A (1.00 cm cell)
Solution	365nm	700nm
a	0.426	0.026
b	0.792	0.081