Answer to Question #300551 in Chemistry for Amani Ismail

Question

A 0.05 g of a certain transition metal compound was reacted with 1, 10 phenanthroline to form a deep purple complex of Iron II phenanthroline [Fe(phen)2] in a total solution volume of 250 ml. The absorbance of the deep purple complex after measurement in a colorimeter in a 2.0cm cuvette was 0.45 at a maximum wavelength of absorption of 510nm.

(i) What is the concentration of the deep purple complex?

(ii) Find the number of moles of the complex in the 250 ml solution volume.

(iii ) What % of the Iron II phenanthroline complex is formed from the transition metal

compound.

(iv) What is the % transmittance of the purple complex?