The tabulated data show the concentrations of N2O5 versus time
for this reaction: N2O5 (g) --> NO3 (g) + NO2 (g).
Time(s)
[N2O5] (M)
0
1.000
25
0.822
50
0.677
75
0.557
100
0.458
125
0.377
150
0.310
175
0.255
200
0.210
1a. Determine the order of the reaction by graphing:
Zero Order: Time vs [N2O5]
First Order: Time vs ln[N2O5]
Second Order: Time vs 1/[N2O5]
1b. Determine the rate constant
1c. Predict the concentration of N2O5 at 250 seconds.
The tabulated data show the concentrations of N2O5 versus time
for this reaction: N2O5 (g) --> NO3 (g) + NO2 (g).
Time(s)
[N2O5] (M)
0
1.000
25
0.822
50
0.677
75
0.557
100
0.458
125
0.377
150
0.310
175
0.255
200
0.210
1a. Determine the order of the reaction by graphing:
Zero Order: Time vs [N2O5]
First Order: Time vs ln[N2O5]
Second Order: Time vs 1/[N2O5]
1b. Determine the rate constant
1c. Predict the concentration of N2O5 at 250 seconds.
The following data were obtained for the concentration vs. time
for a certain chemical reaction. Values were measured at 1.0 s
intervals, beginning at 0.00 and ending at 20.0 s. Concentrations
in mM are:
10.00, 6.91, 4.98, 4.32, 3.55, 3.21, 2.61
2.50, 2.22, 1.91, 1.80, 1.65, 1.52, 1.36
1.42, 1.23, 1.20, 1.13, 1.09, 1.00, 0.92
a) Plot concentration, c, vs. time, t, ln
c vs. t, and 1/c vs. t.
b) Decide whether the data best fit zero-order, first-order or...
A chemical reaction time y (hr) is related to the temperature
(°F) in the reaction vessel. The reaction takes place according to
the simple linear regression equation: y = 4.00 - .01x and ? =
0.080. The detailed explanations are needed in all parts.
a. What is the probability that the time to failure exceed 1.8
hr when the applied temperature is 230°F.
b. What is the expected change in reaction time for a 1°F
increase in temperature? Explain in...
Consider this initial-rate data at a certain temperature for the
reaction described by
:
OH-(aq)
OCl-(aq) + I- (aq) --------------> OI-(aq) + Cl-(aq)
Trial [OCl-]0
(M)
[I-]0
(M)
[OH-]0
(M)
Initial rated (M/s)
1
0.00161
0.00161
0.530
0.000335
2
0.00161
0.00301
0.530
0.000626
3
0.00279 0.00161
0.710
0.000433
4
0.00161
0.00301
0.880
0.000377
Determine the tate law and the value of the rate constant for
this reaction.
The following rate data was collected for a reaction X + Y ->
Products
Exp.
[X]
[Y]
Rate of formation of a product
1
0.23
M
0.17
M
0.33
M/h
2
0.46
M
0.17
M
0.66 M/h
3
0.23
M
0.51
M
0.99 M/h
a. Determine the orders with respect to the two reactants and
write the rate law for the reaction
b. Calculate the value...
The data presented below were collected on the amount of time,
in hours; it takes an employee, to process an order at a local
plumbing wholesaler.
2.8
4.9
0.5
13.2
14.2
8.9
3.7
15.2
11.2
13.4
5.5
10.2
1.1
14.2
7.8
4.5
10.9
8.8
18.2
17.1
Construct a stem-and-leaf display of the data.
Construct a frequency distribution of the data
Construct cumulative frequency and cumulative percent
distributions of the data
Construct a frequency histogram of the data.
Determine the percentage...
The data shown below were collected for the following
second-order reaction:
Cl(g)+H2(g)→HCl(g)+H(g)Cl(g)+H2(g)→HCl(g)+H(g)
Temperature (K)(K)
Rate Constant (L/mol⋅s)(L/mol⋅s)
90
0.00357
100
0.0773
110
0.956
120
7.781
A)Use an Arrhenius plot to determine the activation barrier for
the reaction
B)Use an Arrhenius plot to determine the frequency factor for
the reaction.
At a certain temperature, the equilibrium constant, Kc, for this
reaction is 53.3. At this temperature, 0.500 mol of H2 and 0.500
mol of I2 were placed in a 1.00-L container to react. What
concentration of HI is present at equilibrium?