A chemistry graduate student is studying the rate of this reaction: 2SO3 (g) → 2SO₂ (g) + 0₂ (8) He fills a reaction vessel with SO3 and measures its concentration as the reaction proceeds: time (seconds) [SO₂] 0 0.0600M 1.0 0.0339M 2.0 0.0236M 3.0 0.0181 M 4.0 0.0147M Use this data to answer the following questions. ☐ Write the rate law for this reaction. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. rate = k = 0 k = x10 ロ・ロ X ?

Consider the following general reaction for which gases A and B are mixed in a constant volume container: A(g) + B(g) -> C(g) + D(g) Match what happens to the rate of the reaction under the following changes: (consider each change separately) v all of gas B is removed from the container more gas A is added to the container the temperature of the container is increased there is no change to the reaction rate ya catalyst is added to the container I. the reaction proceeds at a faster rate v gas D is also added to the container the reaction proceeds at a slower rate II. some of gas B is removed from the container Iy the reaction does not proceed at all the volume of the container is increased

Consider this reaction.    2A             B     It obeys the rate law:    rate =   k [A] 2   and  k = 0.188 M -1 s -1 If the initial concentration of A is 0.600 M, at what time will the concentration be 50.0% of that value? Consider this reaction.    2A             B     It obeys the rate law:    rate =   k [A] 2   and  k = 0.188 M -1s -1 If the initial concentration of A is 0.600 M, at what time will the concentration be 50.0% of that value? 793 s 8.87 s 182  s 9.48 x 103 s 79.1 s 3.07 x 10-3 s 1.50 x 109 s 5.22  x 10-2 s

A chemistry graduate student is studying the rate of this reaction: 2H, РО, (ад) - Р,0, (aq) +зн,о (ад) She fills a reaction vessel with H,PO, and measures its concentration as the reaction proceeds: 4 time [H,PO,] (seconds) 0.400M 10. 0.246M 20. 0.152M 30. 0.0934M 40. 0.0575 M Use this data to answer the following questions.

The following graph displays the concentration of bromine gas during the reaction H₂(g) + Br₂(g) →2HBr(g). Concentration (M) 1.2- 1.0 0.8 0.6- 0.4 0.2- 0+ [Br₂] 50 Time (s) On a separate sheet of paper, determine the following quantities and upload a picture of your work for credit: a) the average rate of the reaction between Os and 25s. b) the instantaneous rate of the reaction at 25s c) the instanteous rate of the formation of HBr at 50s 100 150

Jj.143.