Question

CH$_3$OH 1. The reaction: C$_2$H$_4$Br$_2$ + 3KI $\longrightarrow$ C$_2$H$_4$ + 2KBr + KI$_3$ was carried out in a 1 L vessel. The concentrations of the product, [KI$_3$] were measured at various times, $t$ (in minute) in three experiments (Expt.) of different initial concentrations of the reactants, [C$_2$H$_4$Br$_2$]$_0$ and [KI]$_0$ as given in the table. [KI$_3$](mol/L) 0.040 Expt. [C$_2$H$_4$Br$_2$]$_0$(mol/L) [KI]$_0$(mol/L) 0.035 I 1 0.05 0.15 0.030 II II 0.05 0.10 0.025 III III 0.03 0.10 0.020 0.015 0.010 0.005 0.000 0 10 20 30 40 50 a) Use the graphical data to estimate initial rates of the reaction in the three experiments. b) Calculate number of moles of C$_2$H$_4$Br$_2$ and KI at 10.0 min in Expt. I. c) Calculate the rate constant and determine the rate law for this reaction. $t$ (min)

          CH$_3$OH
1. The reaction: C$_2$H$_4$Br$_2$ + 3KI $\longrightarrow$ C$_2$H$_4$ + 2KBr + KI$_3$ was carried out in a 1 L vessel.
The concentrations of the product, [KI$_3$] were measured at various times, $t$ (in minute) in three experiments (Expt.)
of different initial concentrations of the reactants, [C$_2$H$_4$Br$_2$]$_0$ and [KI]$_0$ as given in the table.
[KI$_3$](mol/L)
0.040
Expt. [C$_2$H$_4$Br$_2$]$_0$(mol/L) [KI]$_0$(mol/L)
0.035
I
1
0.05
0.15
0.030
II
II
0.05
0.10
0.025
III
III
0.03
0.10
0.020
0.015
0.010
0.005
0.000
0
10
20
30
40
50
a) Use the graphical data to estimate initial rates of the reaction in the
three experiments.
b) Calculate number of moles of C$_2$H$_4$Br$_2$ and KI at 10.0 min in Expt. I.
c) Calculate the rate constant and determine the rate law for this reaction.
$t$ (min)

CH3OH
1. The reaction: C2H4Br2 + 3KI ⟶ C2H4 + 2KBr + KI3 was carried out in a 1 L vessel.
The concentrations of the product, [KI3] were measured at various times, t (in minute) in three experiments (Expt.)
of different initial concentrations of the reactants, [C2H4Br2]0 and [KI]0 as given in the table.
[KI3](mol/L)
0.040
Expt. [C2H4Br2]0(mol/L) [KI]0(mol/L)
0.035
I
1
0.05
0.15
0.030
II
II
0.05
0.10
0.025
III
III
0.03
0.10
0.020
0.015
0.010
0.005
0.000
0
10
20
30
40
50
a) Use the graphical data to estimate initial rates of the reaction in the
three experiments.
b) Calculate number of moles of C2H4Br2 and KI at 10.0 min in Expt. I.
c) Calculate the rate constant and determine the rate law for this reaction.
t (min)

Added by Sharon J.

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