{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

General Chemistry - Midterm 1 2008

General Chemistry - Midterm 1 2008 - Dr Rashmi...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
September 29, 2008 Dr. Rashmi Venkateswaran CHM 1301 and CHM 1311 B GENERAL CHEMISTRY QUIZ 1 STUDENT NAME STUDENT ID. No. DEMONSTRATOR’S NAME: LAB SECTION: 1 2 3 4 5 6 7 8 9 10 CONSTANTS R = 8.314 J/molK = 0.08206 L atm/molK 1 atm = 760 Torr = 101.325 kPa = 1.01325 x 10 5 Pa N A = 6.022 x 10 23 mol -1 There are 9 pages in this quiz including the cover page and the periodic table. Check and ensure you have answered each question before handing in the quiz. PLEASE use a pen!! Box, underline or highlight your FINAL answer. The quiz is out of 50 points CLEARLY explain your thinking… USE UNITS!
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
A 34.8 mL sample of an unknown, water-insoluble gas was collected over water at 22.6 °C and a barometric pressure of 0.895 atm. When the gas was dried and chilled, it formed 114.6 mg of liquid. What was the molar mass of this substance? [Vapor pressure of water at 22.6 °C is 20. mmHg] (10) Suggest a possible identity for the unknown substance.
Image of page 2
Calculate the mass , in grams, and the volume , in litres, of H 2 (g) (measured at 22.0 °C and 745 mmHg) required to react with 30.0 L CO(g) (measured at STP) in the reaction CO(g) + H 2 (g) C 3 H 8 (g) + H 2 O(l) (10)
Image of page 3

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

View Full Document Right Arrow Icon
A container of volume 2.00 L is filled with an unknown gas to a pressure of
Image of page 4
Image of page 5
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