The indicator xylenol orange (Table 11-3) forms a complex with Zr(IV) in HCl solution. Prepare a Job plot from the data in the table and suggest the stoichiometry of the complex (xylenol orange)_xZr_z.

Table 11-3

Transcribed Image Text:

Mole fraction Relative Mole fraction Relative xylenol absorbance at xylenol absorbance at orange Amax = 550 nm orange Amax = 550 nm 0.100 0.110 0.600 0.236 0.200 0.235 0.700 0.145 0.300 0.352 0.800 0.088 0.400 0.412 0.900 0.045 0.500 0.348