Answer:
Explanation:
[ AXâ‚‚] is decomposing to form products .
Rate of reaction =1/2 x- [ AXâ‚‚] / t
rate between 0 to 2 s
- [ AX₂] = change in concentration of  AX₂ = .05 - .0448
= .0052 mol/LÂ ,
time t = 2s
1/2 x [- AX₂] / t  = 1/2 x .0052 / 2
= .0013 mol/L.s
between 2 to 6 second
- [ AXâ‚‚] Â = .0448 - .0300
=.0148 mol/L
t = 6-2 = 4 s
1/2 x [ -AX₂] / t  = 1/2 x .0148 / 4
= .00185 mol/L.s