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Ch15-Hw Google Chrome Secure https/session masteringchemistry.com/myct/itemview?assignmentProblemID 79612617 General Chemistry II Spring 2017 Using Integrated Rate Laws previous 19of 31 t Using Integrated Rate Laws Part C The integrated rate laws for zero-, first- and second- orderreaction may be amanged such that they The reactant concentration in a frst-order reaction was 9 30*10-2 M resemble the equation for a straight line, after 150 s and 420 103 Mafter 70.0s. What is the rate constant for this teaction? n order Integated Rate Lai Sope Express your answer with the appropriate units. Indicate the ltiplication of units, as necessary, explicitly either with a att mul tiplication dot or a dash. er 12. 2065 Hints MLAeswers Give Up Review Part Incorrect. Try Again: 4 attempts remaining Part D The reactant concentration in a second-order reaction was 0 110 M aner 205 s and 6.30-10 Maher s What is rate constant for 62 PM

Explanation / Answer

K   = 2.303/t log[A0]/[A]

K   = 2.303/(70-15) log0.093/0.093-0.0042

   = 2.303/55 log(0.093/0.0888)

= 0.04187*0.02 = 0.0008374sce-1

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