In the reaction of gaseous N2O5 to yield
NO2 gas and O2 gas as shown below the
following data table is obtained:
2 N2O5 (g) → 4 NO2 (g) +
O2 (g)
Data Table #1
Time (sec)
[N2O5]
[O2]
0
0.200 M
0
300
0.182 M
0.009 M
600
0.166 M
0.017 M
900
0.152 M
0.024 M
1200
0.140 M
0.030 M
1800
0.122 M
0.039 M
2400
0.112 M
0.044 M
3000
0.108 M
0.046 M
Complete the...
For the reaction 2NO_2 (g)→2NO_2 (g)+O_2 (g)
The data given below was
collected:
Time(s)
[NO2]
Ln[NO2]
1/[NO2]
0
0.110
-2.205
9.066
1
0.108
-2.229
9.294
2
0.105
-2.254
9.524
3
0.103
-2.277
9.747
Obtain the average rate of decomposition of NO_2 in units of M/s
for each interval.
What is the order of the reaction with respect to NO_2?
How long would it take for the concentration to decrease to
.0900M?
A) The data below shows the mean M and standard deviation S For
the grades of three subjects: M1=70, S1=5. M2=60,S2=2. M3=95,S3=1
certain student took the three subjects she got 72 in the first 66
in the second and 90 in the third in which cause she did better?( I
am not sure if she did better in subject two or three because
subject three has a standard deviation of 1)
B) A large basket of fruit contains 13 oranges...
The sample data in the table below shows Blood Alcohol
Concentration (BAC) level at arrest of randomly selected jail
inmates who were convicted of DWI or DUI offences. The data are
categorized by the type of drink consumed (based on data from U.S.
Department of Justice). At the 0.05 level of significance, test the
claim that beer drinkers and liquor drinkers have the same BAC
levels.
Beer
0.129
0.154
0.203
0.146
0.155
0.190
0.148
0.187
0.164
0.152
0.212
0.165
Liquor...
The data below shows the time to exhaustion after drinking
chocolate milk and time to exhaustion after drinking carbohydrate
replacement drink by 6 men in a study of effectiveness of 2 types
of drinks. Is there any evidence that the mean time to exhaustion
is lesser after chocolate milk? Use α = 0.0025.
Men
1
2
3
4
5
6
Chocolate Milk
10
30
40
10
15
21
Carbohydrate replacement drink
24
50
38
36
26
36
QUESTION
The table below shows data collected over a two-hundred-year
time span in a woodland area. Each year, the number of new invasive
species that appeared for the very first time in that woodland was
recorded. Do new invasive species appear in random years, or
non-random years? If they appear randomly, the data should follow a
Poisson distribution.
Calculate the mean number of new invasive species per year
Test whether the data fit a Poisson distribution, making sure
the data...
The below data shows the amount of time (in seconds) that
animated Disney movies showed the use of
tobacco and alcohol. Test the claim that the mean difference in
time of tobacco use vs. alcohol use is
equal to zero at the 0.1 significance level.
Hint: The standard deviation of the differences is 12.0613
Tobacco Alcohol
37.7 71.2
52.4 62.3
56 90.6
38.6 52.5
42.9 55.4
53.1 56.9
59.8 62.7
39.4 74
44.3 77.8
42.1 49.2
49.2 56.2
45.6 60.4...
The below data shows the amount of time (in seconds) that
animated Disney movies showed the use of tobacco and alcohol. Test
the claim that the mean difference in time of tobacco use vs.
alcohol use is equal to zero at the 0.1 significance level. You may
want to use a spreadsheet to help you solve this problem
Tobacco Alcohol
56.1
110.9
40.5
70.2
37.2
90.6
49.2
112.8
63.4
202.4
48
93.5
52.3
92.8
52
78.1
40.5
109
39.2
45.5...
A stone is thrown vertically upward at a speed of 48.00 m/s at
time t=0. A second stone is thrown upward with the same speed 4.050
seconds later. At what time are the two stones at the same
height?
Set up an equation of motion for each stone. Write the time for
the second stone in terms of the time for the first stone. Solve
the two equations for the unknown time.