CHM 132 - Exam 3 - 2003

CHM 132 - Exam 3 - 2003 - Chemistry 132 Hour Examination 3...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 132 Hour Examination 3 April 15, 2003 Name ( PRINT)____________________________ Student number____________________________ Workshop Leader__________________________ 1. (25 points ) ____________________ 2. (25 points ) ____________________ 3. (20 points ) ____________________ 4. (30 points ) ____________________ 5. (30 points ) ____________________ TOTAL (130 points ) Show your work neatly and circle your answers . Give correct units for answers requiring them.
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 Name_________________________ 1. (25 points) As an inspector for the Nuclear Regulatory Commission, you are asked to devise a procedure for disposing of a sample of radium-226 with an activity of 1.0 Curie (Ci). The half-life for radium-226 is 1600 years. 1 year = 3.16 × 10 7 sec. (a) How many atoms of radium-226 are in the sample? (b) What is the mass of the sample? (c) How many years must the sample be stored in order for the activity to be reduced to 0.10 Ci?
Background image of page 2
3 Name_________________________ 2. (25 points) The development of a photographic image on film is a process controlled by kinetics. Exposed silver halide crystals in the film are reduced to silver in a developing solution.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 8

CHM 132 - Exam 3 - 2003 - Chemistry 132 Hour Examination 3...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online