Question

if kept at a constant temperature, what is the concentration at 865s if the initial concentration was 0.0225M

Answer 1

`[SO_2Cl_2]=0.0175M`

Step-by-step explanation:

Hello!

In this case, considering that the decomposition reaction of SO2Cl2 is first-order, we can write the rate law shown below:

`r=-k[SO_2Cl_2]`

We also consider that the integrated rate law has been already reported as:

`[SO_2Cl_2]=[SO_2Cl_2]_0exp(-kt)`

Thus, by plugging in the initial concentration, rate constant and elapsed time we obtain:

`[SO_2Cl_2]=0.0225Mexp(-2.90x10^(-4)s^(-1)*865s)`

`[SO_2Cl_2]=0.0175M`

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