I need help with my Chemistry Kinetics Lab Report! The objectives of the lab was

Question

I need help with my Chemistry Kinetics Lab Report!

The objectives of the lab was to determine the reaction order for the reaction between Na2S2O3 and HCl with respect to S2O3-2.

Here are the values and graphs I have obtained.

The question asks: Identify the reaction order and explain the selection

I have no idea on how to identify the reaction order with the graphs. Any answers and explanations will be greatly appreciated.

OBSERVATIONS FOR PART 2-A: TABLE 1.1: CONCENTRATION INFORMATION FOR THE DETERMINATION OF THE EFFECT OF CONCENTRATION ON THE RATE OF REACTION. Concentration 1/[C] In[Cl (g/L) Stock solution 4H-3 0.178 -1.72 | s. Solution A 3.020 0. 137 1. 7.3 055 ,52 SolutionB .s Solution C0 63.oia . .32 Solution D13.s1 o. 0G22.77 solution .36,03 3.0320,74

Explanation / Answer

The equation is of the format : 1/[A] - 1/[A]0 = k*t

This is a second order reaction as the graph of 1/C varies linearly with time.

It can be derived in the following way :

d[A]/dt = -k [A]2

d[A]/[A]2 = -k dt

integrate it with the limits t : 0---> t

and A : A0 ----> A

you get the above equation

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