Hello
It represents the certain radio station that you are currently using and it is the smae number of radio waves
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Solution :
Time (sec) Volume of NaOH (mL)
339 26.23
1242 27.80
2745 29.70
4546 3.81
39.81
Now the example of the first order kinetics w.r.t volumetric analysis is :

Here, 

= volume at time 0 = 0
Since the interval is not constant, we take the time interval as


= 1402.3333
≈ 1402 seconds


= 0.001643 x 0.52045
= 0.00082

Therefore, the first order rate constant is k
.
Answer:
The answers for the questions are in the picture.
25% of 20
%=100
25/100 x 20
1/4 x 20
The answer is equal to 5