It's about lab. The problem is: How long does it take NaOCl to discolor a blue solution?

Blue Solution Info:
lmax = 630 nm
c = abs/ El
EI (molar coefficient) = 1.38 x 10 ^ (-5)
with that formula i got concentration (initial) = 1.79 x 10^(-5)

NaOCl info:

initial concentraion : 0.0635M

1st experiment:
50 drops blue solution + 10 drops NaOCl
T (it took for it to be discolored) = 131s

2nd experiment:
50 drops blue solution + 5 drops NaOCl + 5 drops H20
T = 262 s

Experiment 3:
50 drops blue solution + 2 drops NaOCl + 8 drops H20
T = 999s

For experiment 1 and 2 i have to find order of NaOCl. How do i do that?
And how do i find out the final concentration of NaOCl?

For experiment 3 i have to find the order of the blue solution?
How??


What are the formulas I need? plzz help