Instructions: To answer each question simply click the button beside the answer you think is correct. When you have finished, click on the "Evaluate Responses" button at the end of the test. Do NOT print any of the questions, answers, or evaluation of the examination. Do NOT make any written notes concerning the questions on the exam. When entering your name, use your full name only. No nicknames, abbreviations, or other shortened forms are acceptable.

Please Enter Your Name:
If you would like a copy of your results E-Mailed to you, enter your address here:

1. How many ml of 0.75% NaCl is needed to make 200 ml of 0.4% NaCl?

107

93

60

200

2. How many ml of 4M H2SO4 are required to make 1.5 liters of 0.5M acid?

93.75

150

187.5

750

3. To make 200 ml of 70 percent alcohol from 95 per cent alcohol how much 95% alcohol is needed?

133.0

140.5

150.0

147.4

4. How many ml of 95% ethanol are required to make 250 ml of 70% ethanol?

184.2

375.9

92.1

276.3

5. How many ml of 5N HNO3 are required to make one liter of 0.8N acid?

160 ml

250 ml

320 ml

80 ml

Time Remaining:
Comments regarding this exam which you would like forwarded to the instructor may be entered in the box below:

---

To go to the CLS Web Site Homepage, click this link.

---

The original RandomQuiz Script v2.1.11 is copyright 1998-2003 by Kristina Pfaff-Harris and can be found at http://www.tesol.net/scripts/
Revisions to the Original Randomquiz Script done by Thomas B. Wiggers, Associate Professor, February 2008

---

All course content material, layouts, and examination items are Copyright © 2008 Thomas B. Wiggers.

---