New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Chem 127 Class Notes - Week 1

by: Aenea Mead

Chem 127 Class Notes - Week 1 CHEM 160

Aenea Mead
Cal Poly

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes are a comprehensive overview of dimensional analysis. They explain what dimensional analysis it as well as how to do it. There are example problems as well as many tips regarding how be...
General Chemistry for Agriculture and Life Science I
Class Notes
dimensional analysis
25 ?




Popular in General Chemistry for Agriculture and Life Science I

Popular in Chemistry

This 2 page Class Notes was uploaded by Aenea Mead on Sunday September 25, 2016. The Class Notes belongs to CHEM 160 at California Polytechnic State University San Luis Obispo taught by unknown in Fall 2016. Since its upload, it has received 7 views. For similar materials see General Chemistry for Agriculture and Life Science I in Chemistry at California Polytechnic State University San Luis Obispo.


Reviews for Chem 127 Class Notes - Week 1


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/25/16
Dimensional Analysis   Dimensional analysis is a convenient way to convert quantities from one unit to another. It would  be used in an instance where two volumes need to be added, but they are in different units.  Dimensional analysis would help to put them in the same unit, so that they can then be added. It  is like how fractions cannot be added when they have different denominators, so in order to add  them a common denominator needs to first be found. Dimensional analysis could also be used to  solve more complex problems such as determining the density (in g/cm )of a solid when only  the diameter (in nm) of each atom and its mass (in amu) is known ahead of time.    Above is the what and why, n​ ere is ​ ow:    Question: How far (in miles) will a person run during a 5 kilometer race?    5km 0.62mi Solution #1:  * = 3.1 mi /race   race 1 km Solution #2: km 1mi = 3.1 mi /race   race * 1.61 km   **Note: You want your old units to cancel diagonally so that you end with the new units.  **Note: It does not matter which way you write the conversio1mfor 0.01m as long as  they are on the correct side of the fraction line.    ***Tip: It can be helpful when organizing your dimensional analysis to put the beginning and  end units at the top of the page. It may not be necessary for an problem like the above example,  however when the questions get more complex it is a good way to stay organized and headed in  the right direction.    7​ Question: A city uses 1.2 x 10​  gallons of water /day. How many liters per hour  needs to be pumped from the lake in order to supply the city? (1 gal = 3.785L)    gallons/day  →  liters/hour    7 Solution: 1.2*10 gal 1 day   3.785L = 1,892,500L/hr  day * 24 hours * 1 gal   **Note: Notice how days and gallons cancel diagonally in order to end with L/hr.  **Note: Oftentimes a conversion factor will be needed (in this case gallons to liters), which will  always be provided in a classroom setting.    Question: A tank of gas holds 25.8 gallons. If the density of gasoline is 0.9315 g/mL, find the  mass (in lbs) of the fuel in a full tank. ​(1 gal = 3.785L, 1g = 0.002205lb)    Solution:   25.8gal 3.785L  1000mL 0.9315g 0.002205lb = 200.6lb/tank   tank * 1gal * 1 L * 1 mL * 1 g            


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Amaris Trozzo George Washington University

"I made $350 in just two days after posting my first study guide."

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.