CHEM 120 INTRODUCTION TO GENERAL
ORGANIC & BIOLOGICAL CHEMISTRY WITH
LAB EXAM 1 REVIEW CHAMBERLAIN COLLEGE
, lOMoAR cPSD| 19857451
Exam 1 Review CHEM120
Week 1 Topics:
Scientific method
Hypothesis: A testable explanation.
Independent variable: What you as the scientist are controlling or changing.
Dependent variable: Depends on the independent variable. What you expect to change. What
you are measuring.
Positive control: Group or condition with known outcome.
Negative control: Condition for which no change is expected.
Experimental controls: All the conditions that are held constant.
Dimensional Analysis
DA Tips
• Always, ALWAYS, write your units
• Memorize the conversions (Powerpoint and Edapt)
o Imperial to metric (Gal to L, tsp to ml, etc)
o Metric prefixes (1000 mx = 1 x, 100 cx = 1x)
• Always set up your start and end point before using conversions
Examples:
1. I have a book with a weight of 0.46 lbs. What is the mass of this book in kg?
Answer:
0.46 lbs 1 kg 0.21 kg
2.2 lbs
2. I have a sample of a fluid with a volume of 670 ml. What is the volume of this sample in
gal?
Answer:
670 ml 1L 1 gal 0.18 gal
1000 mL 3.785 L
3. I have a sample that diffused to a diameter of 0.2 inches. What is this diameter in mm?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AcademicAllure. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.