Exam (elaborations)
CHEM 121 Lab Report 1: Equipment, Safety, and Mass/Volume Measurement
- Course
- CHEM 121
- Institution
- Portage Learning
CHEM 121 Lab Report 1: Equipment, Safety, and Mass/Volume Measurement
[Show more]
2 reviews
By: abandstra • 10 months ago
By: maryiyere • 1 year ago
Content preview
Chemistry Lab Report Name: Date: Experiment #: 1 Title: Equipment, Safety, and Mass/Volume Measurement Purpose: The purpose of this experiment is to learn how to be safe while working in the chemistry lab. Also, to learn about different equipment and how it is used properly in the chemistry lab setting. Lastly, to learn how to measure mass and volume using different equipment. Procedure: Analytical Balance Mass Measurement: 1) Five (5) analytical balances should be placed on a countertop and zeroed. 2) A cell phone is placed on analytical balance 1. 3) A value is read and recorded from analytical balance 1 in grams for the mass of the cell phone. 4) The cell phone is removed from the analytical balance. 5) A graduated cylinder is placed on analytical balance 1. 6) A value is read and recorded from analytical balance 1 in grams for the mass of the graduated cylinder. 7) The graduated cylinder is removed from the analytical balance. 8) A metal cylinder is placed on analytical balance 1. 9) A value is read and recorded from analytical balance 1 in grams for the mass of the metal cylinder. 10) The metal cylinder is removed from the analytical balance. 11) The same cell phone is placed on analytical balance 2. 12) A value is read and recorded f rom analytical balance 2 in grams for the mass of the cell phone. 13) The cell phone is removed from the analytical balance. 14) The same graduated cylinder is placed on analytical balance 2. 15) A value is read and recorded from analytical balance 2 in grams for the mass of the graduated cylinder. 16) The graduated cylinder is removed from the analytical balance. 17) The same metal cylinder is placed on analytical balance 2. 18) A value is read and recorded from analytical balance 2 in grams for the mass of the metal cylinder. 19) The metal cylinder is removed from the analytical balance. 20) The same cell phone is placed on analytical balance 3. 21) A value is read and recorded from analytical balance 3 in grams for the mass of the cell phone. 22) The cell phone is removed from the analytical balance. 23) The same graduated cylinder is placed on analytical balance 3. Chemistry Lab Report 24) A value is read and recorded from analytical balance 3 in grams for the mass of the graduated cylinder. 25) The graduated cylinder is removed from the analytical balance. 26) The same metal cylinder is placed on analytical balance 3. 27) A value is read and recorded from analytical balance 3 in grams for the mass of the metal cylinder. 28) The metal cylinder is removed from the analytical balance. Triple -Beam Balance Mass Measurement: 1. A triple beam balance should be placed on a countertop and all weights should be placed at zero. 2. The same metal cylinder from the above experiment is used and placed on the triple - beam balance. 3. Begin by sliding the largest capacity beam to the first notch causing the pointer to drop. 4. Move the weight back to the left until it reaches zero and the pointer rises. 5. Repeat step 3 with the next capacity beam, sliding the weight to the first notch. 6. Repeat step 3 with all capacity beams until the pointer rests at zero. 7. A value is read and recorded from the triple -beam balance in grams for the mass of the metal cylinder. 8. The metal cylinder is removed from the triple -beam balance. Single Pan Balance Mass Measurement: 1. Three (3) single pan balances should be placed on a countertop and zeroed. 2. A cell phone is placed on single pan balance 1. 3. A value is read and recorded from single pan balance 1 in grams for the mass of the cell phone. 4. The cell phone is removed from the single pan balance. 5. A graduated cylinder is placed on single pan balance 1. 6. A value is read and recorded from single pan balance 1 in grams for the mass of the graduated cylinder. 7. The graduated cylinder is removed from the single pan balance. 8. A metal cylinder is placed on single pan balance 1. 9. A value is read and recorded from single pan balance 1 in grams for the mass of the metal cylinder. 10. The metal cylinder is removed from the analytical balance. Buret Volume Measurement: 1. A buret is filled to the zero point with water. 2. A beaker is placed on the analytical balance and zeroed. 3. 10.10 ml of water is added to the beaker from the buret by using a stopcock. 4. A value is read and recorded from the analytical balance in grams for the mass of 10.1 ml of water. 5. The calculation V=M/D is used to determine the actual volume of water delivered by the buret. 6. Percent error is calculated. % error in V=[value added to beaker from buret – calculated volume from formula]/value added to beaker from buret x 100.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 Jumuja. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now