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


by: Mariah Olgin
Mariah Olgin
Collin County Community College District

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

Calculus II
Sarah Lynch
Class Notes
25 ?




Popular in Calculus II

Popular in Department

This 4 page Class Notes was uploaded by Mariah Olgin on Wednesday September 21, 2016. The Class Notes belongs to Math 2414 at Collin County Community College District taught by Sarah Lynch in Fall 2016. Since its upload, it has received 7 views.

Similar to Math 2414 at Collin County Community College District


Reviews for tester


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: 09/21/16
1 Lab Report: Recycling Aluminum Chemically Lab Report: Recycling Aluminum Chemically Mariah Olgin CHEM 1411 2 Lab Report: Recycling Aluminum Chemically Background Information: Aluminum is one of the most abundant elements on earth. Even though it is quite abundant it takes a significant amount of energy and resource to process refine and use aluminum in everyday and functioning applications. Many companies instead have ways of chemically recycling the aluminum so that it can be used again. This process takes much less time and energy than it would if it were to be mined and refined for its ore state. In this lab we will be using a chemically process involving acid to break down the original aluminum into Alum crystals. The ultimate goal is to produce the highest yield of alum crystals based on the original amount of aluminum. 100% is the perfect amount, that would be the theoretical yield of alum. In real life applications for business, the higher percent yield will have the least amount of resources used in recycling the aluminum and the most potential for money to be made by the product. Procedure: 1.0002 g of the aluminum foil was measured out and placing it in the 250 mL beaker. Next, 25mL of KOH was added to the same beaker and the reaction that took place was observed under the fume hood. After 5 minutes, the beaker with the solution was placed on a hot plate and gently heated. There were a few times when the liquid level was lowering that small amounts of deionized water was added. The color of the reaction was observed. Next, the beaker was lifted and the solution poured into the vacuum filter in the Buchner Funnel to filter out any undissolved pieces. The reaction beaker was rinsed and poured the rinse back through the filter. The 3 Lab Report: Recycling Aluminum Chemically filtrate was then placed into a clean beaker and the flask was rinsed with 10mL of deionized water. This was added into the same beaker. The solution was let to cool. Next, 20mL of Sulfuric Acid was stirred in. The reaction was heated until it was clear. With a prepared ice water bath, the beaker containing the filtrate was placed in the bath for 15 minutes. During this time, the filter paper was weighed. Then with the same vacuum filtration system, the mixture was again filtered. The solution was rinsed with an ethanol-water solution with 12mL ethanol and 12mL of deionized water. The vacuum was applied to dry the remaining crystals until completely dried. These alum crystals produced were then weighed. Finally, we showed our finishing product to our lab instructor before calculating our percent yield. Results: Initial Mass of Al: 1.0002 grams Al + KOH Observations (color?): boils, steams as Al dissolves, turns black when fully dissolved Reaction complete when heated: turns clear On Filter Paper: small black powder substance Color of Filtrate: clear + H 2O :4solid white substance formed then mixed in till solution was milky white, turned clear again when heated. Alum Crystals: 8.599 grams Theoretical Yield: 17.57 grams Percent Yield (Actual/Theoretical x 100): 48.9% 4 Lab Report: Recycling Aluminum Chemically Conclusion: In this lab we were successfully able to simulate a process similar to how Aluminum is recycled professionally for businesses. The theoretical production we initially predicted for alum crystal mass was 17.57 grams given the initial mass of the aluminum by dividing the initial by the molar mass of Aluminum and them multiplying that by the molar mass of Alum. We received a real life production of only 8.599 grams giving us an 48.9% percent overall yield to alum production. Toward the end of the lab when the final amount of alum crystals was measured and the crystals were transferred from the filter and paper to the balance so the mass could be weighed, if any fell or was knocked off then that would have lowered our results. Also, had the alum crystals been given more time to grow then our percent yield could have been higher. When we heated out initially solution we brought out liquid to boiling instead of a gentler heating. There was also the potential for slight variations in measurements. Overall our yield compared to our theoretical was not very high. In a real life business, they would only be producing half of the Alum that they could be potentially be making, but of in business the making the most possible leads to a higher profit overall.


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

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."

Janice Dongeun University of Washington

"I used the money I made selling my notes & study guides to pay for spring break in Olympia, Washington...which was Sweet!"

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!"


"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.