The accompanying data were obtained in a slope-ratio investigation of the complex formed between Ni2+and 1-eyclopentene-1-dithiocarboxylie acid (CDA). The measurements were made at 530 nm in 1.00-cm cells.
(a) Determine the formula of the complex. Use linear least-squares to analyze the data.
(b) Find the molar absorptivity of the complex and its uncertainty.