The solutions in thls pluLaU alt. stock used 1.00 M stock solution of NaOH 6.00E

Question

The solutions in thls pluLaU alt. stock used 1.00 M stock solution of NaOH 6.00E-04 M stock solution of Carmine Red Note that the Beer's Law constant (s) of Carmine Red is 4.80E+04 L mol-1 cm-1 In the two runs of the reaction that are performed, each volume of stock solution used is diluted to a final volume as indicated in the table below. NOTE that this is before any mixing of the solutions occur. Run 1 Run 2 Volume NaOH stock. 4.00 mL. 8.00 mL Final Volume Diluted NaoH 50.0 mL 50.0 mL Volume CR stock 5.00 mL 5.00 mL Final Volume Diluted CR 50.0 mL. 50.0 mL

Explanation / Answer

For the given data for carmine red

the plot of lnA vs time

shown above gives us the best fit line and straight line plot.

Now we know that for a first order reaction,

lnA vs time must give a straight line plot

Thus,

following the same principle,

the value of m would be,

= 1

So this is a first order kinetic experiment

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