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Unit 1.6 The Mole
This section deals with the concept of the mole. Interviews
with students reveal their uncertainty about the concept.
An activity is presented to help students visualize what
a mole is by combining a familiar game with chemical calculations.
Video program cues: 33:40-42:40
What is a mole?
Students’ ideas
"I think this is the 6.02x1023
thing…."
"Something that hunches underground-an animal-and it digs…."
"It's used for calculating lots of chemistry equations…."
Link
- National
Mole Day home page. National Mole Day is celebrated,
October 23 (10-23) each year. Resources are listed.
About the mole
"The primary unit for the amount of substance
in a chemical element is the mole, and if you are talking
about the stoichiometry of a reaction, the mole is the basis
for that."
Dr. Willie May
National Institute of Standards, Maryland
Reading
Rohrig, B. (2000) 'Fizzy Drinks: Stoichiometry You Can Taste,
'Journal of Chemical Education, Vol. 77, No. 12, pp: 1608A-1608B.
Periodic Table hopscotch laboratory
Leslie Pierce helps her students visualize the mole through
a fun activity based on calculations.
Activity
Links
- Click on "The Mole" to see a page of links
to
tutorials.
- Explains what
a mole is in chemistry and shows how to convert masses
to moles. Other stoichiometric calculations are also shown.
Reading
Wakeley, D.M. (2000) 'Developing an Intuitive Approach to
Moles, 'Journal of Chemical Education, Vol. 77, No. 8, pp:
1007-1010.
| Proceed
to Unit 1.7 |
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