Ethyl chloride, CH3CH2Cl, used to produce tetraethyllead gasoline additive, decomposes when heated to give ethylene and hydrogen chloride. CH3CH2Cl(g)  →  C2H4(g) + HCl(g) The reaction is first order. In an experiment, the initial concentration of ethyl chloride was (2.300x10^-3) M. After heating at 500 °C, for (2.850x10^2) s, this was reduced to (8.30x10^-4) M. What was the concentration of ethyl chloride after a total of (3.7600x10^2) s? Express your answer to three significant figures. Just enter the number  (e.g. 2.48x10^-4) and the unit.  Note: Your answer is assumed to be reduced to the highest power possible.

Chemistry: Matter and Change
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ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
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Chapter16: Reaction Rates
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Ethyl chloride, CH3CH2Cl, used to produce tetraethyllead gasoline additive, decomposes when heated to give ethylene and hydrogen chloride.

CH3CH2Cl(g)  →  C2H4(g) + HCl(g)

The reaction is first order. In an experiment, the initial concentration of ethyl chloride was (2.300x10^-3) M. After heating at 500 °C, for (2.850x10^2) s, this was reduced to (8.30x10^-4) M. What was the concentration of ethyl chloride after a total of (3.7600x10^2) s? Express your answer to three significant figures.

Just enter the number  (e.g. 2.48x10^-4) and the unit. 

Note: Your answer is assumed to be reduced to the highest power possible.
Expert Solution
Step 1

The given reaction is :

CH3CH2Cl(g)  →  C2H4(g) + HCl(g)

The reaction is first order.

The initial concentration of ethyl chloride = (2.300 x 10-3) M

Time for it is heated = (2.850 x 102) s

The concentration of ethyl chloride after (2.850 x 102) s = 8.30 x 10-4 M

We have to calculate the concentration of ethyl chloride after a total of (3.7600 x 102) s

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