At a certain temperature this reaction follows second-order kinetics with a rate constant of 0.0569·M−1s−1:
ClCH2CH2Cl(g) → CH2CHCl(g) + HCl(g)
Suppose a vessel contains ClCH2CH2Cl at a concentration of 0.730M. Calculate the concentration of ClCH2CH2Cl in the vessel 320. seconds later. You may assume no other reaction is important.
Round your answer to 2 significant digits.
_ M
Answer:
Given,
rate =(0.0569 s -1 ) [ClCH2CH2Cl ]
K = 0.0569s^-1
[A0] = 0.730M
t = 320 sec
let us consider,
K = 2.303/t log[A0]/[A]
Substitute values in the expression
0.0569 = 2.303/320 log0.730/[A]
log0.730/[A] = 0.0569*0.320/2.303
log0.730/[A] =0.00791
0.730/[A] = 10^0.00791
0.730/[A] = 1.01837
[A] = 0.730/1.01837
[A] = 0.72 M
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