Class notes
Pre-lab modeule 4
- Course
- CHM 1045L (CHM1045L)
- Institution
- Florida International University
Answers all questions and provides citations (in text and bibliography)
[Show more]
Seller
Follow
Content preview
The Name of the lab report: INTRODUCTION TO LAB TECHNIQUESStudents Name:
Panther ID:
Section Number:
TA name:
Purpose: The lab was designed to instruct students in essential laboratory techniques for
volume measurement. Divided into four parts, it covered burets, volumetric pipettes
graduated cylinders, and beakers. Students performed measurements, recorded data,
calculated average density, and standard deviation, preparing students for subsequent lab
report explanations.
Procedure:
Part 1- Burets and Titrations
In the first part, which centered around Burets and Titrations, a thoroughly washed and
cleaned burette was set up on a secure stand. Once in place, the burette was filled to
capacity, and water was transferred into a precisely 50.0 mL beaker. Meticulous recording of
both initial and final volumes was carried out, ensuring adherenc e t correct significant
figures. Subsequently, the mass of water and its density were calculated based on the
recorded data. Emphasis was placed on precision, and all observations were thoroughly
documented in a dedicated lab notebook. No specific web resources were utiized for this
part, as the focus was hands-on experience and direct measurements from the lab.
Part 2- Volumetric Pipettes
In the second part focusing on Volumetric Pipettes, students utilized pipettes for volume
measurements, transferring liquids into a pre-weighed 50 mL beaker. This step involved
, recording detailed observations, emphasizing the inclusion of units and significant figures for
accuracy. Similar to the first part, calculations for the mass of water and density were
conducted based on the recorded data. Again, no specific web resources were references
for this part, aligning with the primary objective of reinforcing practical skills through direct
engagement with lab equipment.
Part 3- Graduated Cylinder
In the third part, students measured volumes in pre-weighed 50 mL beakers. Readings must
be done from the bottom of the liquid’s meniscus at eye level to avoid parallaxing. According
to UNL Chemsitry (2016) the process involved using a beaker filled with the liquid to be
measured, pouring it into the graduated cylinder, filling it close to the desired volume, and
carefully observing the meniscus to achieve an accurate reading. Students had to use a 100
mL graduated cylinder and estimate volumes with the correct number of significant figures.
final volume.
Part 4- Beakers
The fourth and final part involved Beakers, volumes were measured in a pre-weiged 50 mL
beakers using these common laboratory vessels. Observations were recorded,
measurements were made in triplicate, mirroring the precision required in earlier parts.
Calculations for the mass of water and density based on recoded data were conducted as
before.
Pre-lab questions:
Part 1 Answers
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 ssrp05. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52928 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now