26. Solving a chemistry problem

6. Known data on the current concentration of substance A (expressed as a percentage) during the course of a reversible first-order reaction
Time, min 0 50 80 110 150 170 equilibrium
Current concentration A,% 100 82.3 73.6 66 56.8 53.8 17.5
Necessary:
1) build a kinetic curve;
2) construct an anamorphosis of the kinetic curve;
3) determine the rate constants of the forward and reverse stages.