{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

CHM 132 - Exam 1 - 2006

CHM 132 - Exam 1 - 2006 - Chemistry 132 Hour Examination 1...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 132 Hour Examination 1 February 16, 2006 Name ( PRINT) ______ SOLUTIONS __________ Student number____________________________ Workshop Leader___________________________ There are four questions on this exam. You have up to 80 minutes to work this exam. Please be sure that you have a complete exam package. Please work exam problems on the pages provided. You will receive maximum credit for each problem if: You work neatly You show your work You circle your answers You indicate proper units If you need additional space to complete a problem, please tell us where to look for your solution. Total (130 points) Score 1. (30 points)_____________ 2. (35 points)_____________ 3. (30 points)_____________ 4. (35 points)_____________
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Name______________________________ 1. (30 points) You are operating a mobile lab for the United Nations in the Middle East and you come upon a cache of material that appears to be a high explosive. The only tool you have at your disposal is a bomb calorimeter (no pun intended), and you wish to determine whether the explosive is RDX (C 3 H 6 N 6 O 6 , MW = 222) or TNT (C 7 H 5 N 3 O 6 , MW=227) The known enthalpy of combustion of RDX is –2120 kJ/mol and that for TNT is –3410 kJ/mol. The calibration constant for your calorimeter is 17000 J/ K. You very carefully place a 1.00 g sample of the unknown explosive in the calorimeter and allow it to undergo combustion. For these reactions, you may assume E H, i.e., close enough for Government work.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the 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