For inexpensive chemistry labs to expand your repertoire, buy my lab book Chemistry on a Budget for $23 at amazon.com or lulu.com.
There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report. This way the teacher has the option! Each lab is two pages to allow for one two-sided handout.
There are a couple of labs based on the Mole Concept, both good for introducing the idea.
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*Some of you have purchased my lab book – be sure to check out Page 141 !
Mole Day is coming up on 10/23!
Some of my past Mole related blog posts include: 10/20/14 about Celebrating Mole Day; 10/23/2014 titled …Mole Labs in My Book; and 1/10/14 titled …Mole Conversions and [the] Moletown Map. Check them out!
Upon reviewing my blog, I realized that my Mole coverage has been sort of spotty, so I’d like to focus on the math and worksheets; but, do make sure to check out the past posts!
For some history of the term “mole”:
“The unit "mole" was introduced into chemistry around 1900 by Ostwald, and he originally defined this unit in terms of gram."
As written in the 10/20/2014 entry of this Blog:
The term "mole" is short for the German word "molekulargewicht" which translates to "molecular weight" . … [Ostwald] was writing a paper and was required to use the term molekulargewicht over and over, and subsequently shortened it to the phrase "mole" .
Initially, it seems very foreign to students, but eventually is proven over and over in lab.
Dimensional Analysis or The Factor-Label Method (blog post on 09/02/2014) is very useful for mole conversion math.
Here is a 13-minute video using Dimensional Analysis to covert between moles, mass and particles:
In addition to the relationship of moles and mass, and moles and particles, is that of moles and liters of gas at STP (standard temperature and pressure). Some teachers do not convert gas values until they are teaching about gases in class – the Gas unit can be rather packed with information to master (depending on the course syllabus), so it is up to the teacher to supplement or edit these materials as necessary.
Here is one image of a Mole Road Map:
Here are some Mole Conversion Worksheets for your class:
Here are 2 pages with 4 molecular mass questions and 10 mole/mass/particle questions:
It might be useful as an overhead that could be used for a class lesson.
This mole/mass worksheet is 2 pages with a 3rd answer page:
Here is a page with 10 questions containing mole/gram/particle/volume conversions with another answer page:
Maybe use this as a quick quiz?
This is a series of eight pages with worksheets and answers:
In my lab book “Chemistry on a Budget”, there are several labs focusing on The Mole Concept that you might want to check out:
- "Catching Moles” which is good for grasping the concept as it develops and proves the utility of relative mass;
- “Moles in Your Name?” using chalk, the blackboard and a balance; and
- “Molar Volume” collecting a gas sample and gathering the measurements needed to calculate useful information.
This Blog contains several entries that would be helpful to your chemistry classroom. Remember, you can check out the Topic List to help you to find past Blog entries.
The lab book Chemistry on a Budget is very useful to your Chemistry classroom with labs and class article ideas.
Also, Write To Me about your successes, challenges, or questions in the Chemistry Classroom.
Have a good weekend!