5.3 In a first-order process a blue dye reacts to form a purple dye. The amount of blue at the a end of 1 hr is 480 g and at the end of 3 hr is 120 g. Graphically estimate the amount of blue present initially. 3-1. What is the estimated amount of blue dye present initially? (No graph & solutions, no points) (10 pts graph, 5 pts answer) C. 240 g b. 960 g d. 6.9 g a. 660 g