Consider two reactions, one that is second order and one that is third order. Which best describes the effect on the reaction rates by INCREASING the concentration of all reactants?: The rate increases for only the second-order reaction. The rate decreases for only the third-order reaction. The rates increase for both reactions The rates decrease for both reactions

Consider two reactions, one that is second order and one that is third order. Which best describes the effect on the reaction rates by INCREASING the concentration of all reactants?: The rate increases for only the second-order reaction. The rate decreases for only the third-order reaction. The rates increase for both reactions The rates decrease for both reactions

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter11: Rate Of Reaction

Section: Chapter Questions

Problem 82QAP: When a base is added to an aqueous solution of chlorine dioxide gas, the following reaction occurs:...

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When a base is added to an aqueous solution of chlorine dioxide gas, the following reaction occurs: 2ClO2(aq)+2OH(aq)ClO3(aq)+ClO2(aq)+H2O The reaction is first-order in OH and second-order for ClO2 Initially, when [ ClO2 ]=0.010M and [ OH ]=0.030M, the rate of the reaction is 6.00104mol/Ls. What is the rate of the reaction when 50.0 mL of 0.200 M ClO2 and 95.0 mL of 0.155 M NaOH are added?
Explain what is meant by the average rate of a reaction.
Consider the first-order decomposition reaction A+BCwhere A (circles) decomposes to B (triangles) and C (squares). Given the following boxes representing the reaction at t=2 minutes, fill in the boxes with products at the indicated time. Estimate the half-life of the reaction.
Butadiene, C4H6, dimerizes according to the following reaction: C4H6(g)C8H12(g)The dimerization is a second-order reaction. It takes 145 s for the concentration of C4H6 to go from 0.350 M to 0.197 M. (a) What is k for the dimerization? (b) What is the half-life of the reaction when butadiene is 0.200 M? (c) How long will it take to dimerize 28.9% of a 0.558 M sample? d) How fast is 0.128 M butadiene dimerizing?
As with any drug, aspirin (acetylsalicylic acid) must remain in the bloodstream long enough to be effective. Assume that the removal of aspirin from the bloodstream into the urine is a lirst-order reaction, with a half-life of about 3 hours. The instructions on an aspirin bottle say to take 1 or 2 tablets every 4 hours. If a person takes 2 aspirin tablets, how much aspirin remains in the bloodstream when it is time for the second dose? (A standard tablet contains 325 mg of aspirin.)
Two mechanisms are proposed for the reaction 2NO(g)+O2(g)2NO2(g)Mechanism 1: NO+O2NO3(fast) NO3+NO2NO2(slow) Mechanism 2: NO+ON2O2(fast) N2O2+O22NO2(slow) Show that each of these mechanisms is consistent with the observed rate law: rate=k[ NO2 ]2[ O2 ].