For Problems Involving Long Calculations You Must Show Your Work For Credit Unless Otherwise Stated You May Assume T 1 (29.5 KiB) Viewed 89 times
For Problems Involving Long Calculations You Must Show Your Work For Credit Unless Otherwise Stated You May Assume T 2 (49.82 KiB) Viewed 89 times
For problems involving long calculations you must show your work for credit. Unless otherwise stated, you may assume T =25,0 °C in all of the problems below. 1) Consider the following irreversible chemical reaction A(g) +B(g) → "products" Rate = k[A] " (1.1) The following data were obtained for the initial rate of reaction for several different experimental trials Trial [A]initial mol/L initial moll Initial rate mol/L.min 1 0.0125 0.0150 4,3 x 10 2 0.0125 0.0450 3.8 x 10 3 0.0250 0.0150 9.0 x 10 Based on these data, find the values for m, n, and k, including correct units.
2) The chemical reaction A(g) + (g) → "products" Rate =k[A] is an irreversible first order reaction. The concentration of A as a function of time for a particular experiment is given below: time (min) [A] mol/L time (min) [A] mol/L 0.0 5.0 0.549 0.526 0.510 0.464 40.0 60.0 80.0 0.403 0.346 0.292 10.0 20.0 Based on the above data, find the value for k (rate constant) and tie (half-life), including correct units. (HINT: Since the reaction is first order irreversible, you should plot In[A] vs t.) 3) The reaction A(g) + A(8) ► A(8) Rate =k[A] In a particular experiment it is found that [A] concentration of A after 100.0 s and after 500.0 s. -0.2184 M, and k = 9.3 x 10 L/mol.s. Find the
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