By now it is hoped that you have acquired the needed materials to perform the labs. The lab procedures are outlined in the two copies I emailed you during the spring break. The lab handouts are also found in the course module of week 11. The labs have been written with the cost of materials in mind; many of you may already have them, and costs should be minimal if you don’t. The following will be needed and links are provided to one possible source for each of the two things:
1. A balance with sensitivity to at least 0.1g precision; this can be a kitchen balance or coffee scale, etc.
Here is a link to one of the less expensive models: https://www.amazon.com/Espresso-Scale-Coffee-Batteries-Included/dp/B081YYP4SC/ref=sr_1_21?gclid=Cj0KCQjw3IqSBhCoARIsAMBkTb3xiQh9puFGFMIHq24qXULBqg92vDkQ6oVm9mPYKiVoLNosTZO0N10aAltNEALw_wcB&hvadid=243301142574&hvdev=c&hvlocphy=9031176&hvnetw=g&hvqmt=e&hvrand=16794297274430179251&hvtargid=kwd-332446984314&hydadcr=28520_10703167&keywords=scale+for+coffee&qid=1648576318&sr=8-21 (Links to an external site.)
2. A set of beakers and graduated cylinders. These can be glass, but plastic is sufficient and less likely to break if you drop them.
Here is a link to a set that will work: https://www.amazon.com/APLANET-Transparent-Plastic-Graduated-Cylinders/dp/B074CS25QH/ref=sr_1_3?crid=3D9SC7PM25ZZM&keywords=graduated+cylinders+and+beakers&qid=1648576543&sprefix=graduated+cylinders+and+beakers%2Caps%2C148&sr=8-3 (Links to an external site.)
Although I have indicated the due date to be April 28, you will have time to until May 25. You will get additional 10 points to turn it before the May 25 deadline
Measuring the Volume of Substances and Objects Using Appropriate Glassware
Objective
Upon completion of this laboratory exercise, students will be expected to:
• demonstrate an ability to accurately identify common glassware used for measuring volume.
• choose glassware of appropriate size and precision for a variety of uses and measurements in a chemistry laboratory.
•
accurately record volume measurements of liquids, regular solids (cubes, rectangular prisms, cylinders, etc.), and solid with irregular shapes using appropriate precision for the chosen glassware.
