Question
Assignment 3 Kinetics At 1 atm and 25 oC, the concentration of nitrogen dioxide was measured at different times and the data are shown below.
Assignment 3 Kinetics At 1 atm and 25 oC, the concentration of nitrogen dioxide was measured at different times and the data are shown below.
time (s) | [NO2] (M) |
0 | 0.0800 |
10 | 0.0480 |
20 | 0.0329 |
30 | 0.0253 |
40 | 0.0199 |
50 | 0.0150 |
60 | 0.0143 |
70 | 0.0120 |
Add another sheet and change the tab to read Kinetics and enter the data as shown above. Label a third column ln[NO2] and a fourth column 1/[NO2]
- include units. Use Excels formula function to calculate the values for the third and fourth columns.
1.. Plot a graph of [NO2] vs time. Write the value of R2. Is the relationship linear?
2. Plot a graph of ln[NO2] vs time. Write the value of R2. Is the relationship linear?
3.. Now plot a graph of 1/[NO2] vs time. Write the value of R2. Is this relationship linear?
Write down the algebraic relationship between the variables that are linearly related, i.e., the one relationship from questions 1, 2, & 3 above that is linear. Even though you will have the relationship in the form of y = mx + b, write the relationship with the correct entities or numbers replacing y, m, x and b . Report units as needed for any numerical values you report.
Use your answer to #4 to calculate how long it would take for the concentration to reach 0.0400M. Show your complete work.
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