Hi Dr. Uma,
Could you check this question please:
For b: I was able to get 29 1/ms
For a: I got 1.1 M.Screenshot 2024-12-01 at 4.20.55 PM.png
B ) Value of k = rate /^2 = 28.49/Ms = 28/Ms in correct sig -fig .
C) Total change in concentration of B = 0.054 - 0.050 =0.004 M
now according to balanced equation A will decreases by twice of this value. Means decrease in conc pf A wis 2* 0.004 = 0.008M
So the concentration of A left is 0.023-0.008 =0.015 M