{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

CHM152GW1 Su09

Chemistry (MasteringChemistry Series)

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
CHM 152 Group Work 1 Summer 2009 1. What is the rate law for this reaction? H 3 BO 3 + 3 HCl J BCl 3 + 3 H 2 O ___ __________________________ 2. If the concentration of a reactant is doubled and the corresponding rate quadruples, what is the order with respect to that reactant? ____ 3. To graphically find the rate constant for a first order reaction you should plot __ __ versus time. 4. What is the half-life for a first order reaction if the initial concentration of reactant is 1.25M and after 69.2 seconds the concentration has dropped to 0.955M? 5. What percentage of a sample remains after 5 half lives? __ ___ ___ 6. What is the rate law for a zero order overall reaction? __________ 7. If an elementary step has two reactants, what is its molecularity? __________________ 8. The slow step in a mechanism is also called the _________________________ step. 9. According to the following balanced equation, if the rate of appearance of oxygen gas is 4.00 x 10
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: -2 M/s, what is the rate of disappearance of KClO 3 (s)? 2 KClO 3 (s) → 2 KCl(s) + 3 O 2 (g) a. 2.67 x 10-2 M/s b. 6.00 x 10-2 M/s c. 2.00 x 10-2 M/s d. 3.00 x 10-2 M/s e. 5.33 x 10-2 M/s 10. For this reaction: 2NO(g) + Cl 2 (g) J 2NOCl(g) the real rate law is rate = k [NO] [Cl 2 ] If the following steps are the mechanism, which one must be the rate determining step? _____ What is the intermediate in this mechanism? ____________ __ What is the overall order? _____ NO(g) + Cl 2 (g) J NOCl 2 (g) elementary step one NO(g) + NOCl 2 (g) J 2NOCl(g) elementary step two 11. Name one factor that can increase the success of reactant collisions. Explain how it increases the reaction rate. 12. What is the reactant concentration after 78.9 seconds for a second order reaction with a half-life of 3.l0 minutes if the initial concentration was 0.555M?...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern