Chemistry 103---Quiz #1, Friday Sept. 3, 1999

 

Name __AVERAGE 9.6/10 Name Answer Key

This quiz is meant to introduce you to the types of questions you will encounter during the semester. It is take-home and open book and may be done as individuals or pairs. You may discuss your work only with your partner. You may use a calculator and a periodic chart. Please pay attention to significant figures and write in complete, grammatical sentences.

All work is due by Friday at 5 PM in Room 202.

  1. Problem-solving similar to homework problems. Please show your work clealy and write your answer (with units) in the space provided. You should be able to do these quickly and accurately.

    2. Calculate the molar volume, in Liters / mole, of a sample of Carbon whose density is 2.62 g/ cm3.

    ______ Liters / mole = (1 cm3/ 2.62 g) x (12.01 g/ 1 mole) x (1 Liter/ 1000 cm3 )

    4.58 x 10 -3 Liters/ mole 3 s.f.

     

    Common mistakes

    *** Your answer should have 3 sf

    ***Volume conversions and powers of 10.

    ***Excellent work for most of you!!

  2. Reading questions are designed to ask you about important concepts covered in the text that are not emphasized in class.

    3. Briefly describe the difference between precision and accuracy.

    Precision--reproducible data after multiple trials.

    Accuracy--data close or identical to true value.

     

  3. Tour of Park Science Building

At each stop on your tour, you will find a (Y2K compliant) chemical stamp. Place a stamp in the appropriate location. Clues may be found in the syllabus and in the class Web site.

  1. Here you will find Prof. White's second favorite molecule.

    2.  

    It's DNA

    Stamp here_____________________

  2. Continue past the circulation desk of Collier Library, past the Group Study Room, to find the current issues of Chemical and Engineering News, the weekly magazine of the American Chemical Society.

    3.  

    Nice place for checking e-mail,

    solo and group studying.

    Stamp here____________________

     

     

  3. Chemistry Clinics will be held here starting next week. The Chemistry majors hope you enjoy the new decorations and furniture.

    4.  

    Room 273

    Sun- Thurs. 7-9 PM

     

    Stamp here_____________________

     

  4. Course information and extra copies of handouts are found outside of Prof. White's office. Come here for office hours and appointments.

Room 202 on the way to Biology.

Pick up Graded Work here too.

Stamp here_____________________