[Jasmine]

Has anyone seen or heard of a published book of Stoichiometry problems from High school chemistry to the level of maybe, graduate school?  With the explanations and solutions?  Sort of like a book about learning Basic Algebra, not for all types of Chemistry, just for Stoichiometry? 

Jasmine

[Mitch]

Stoichiometry is too easy to be anything more than just a 1st year college chemistry concept.

[Jasmine]

I will agree that many Stoichiometry problems are rather easily solved, providing the student has mastered the concept of the factor-label method, Ratio Proportions, etc.  The problem that I submitted about 2 weeks ago I thought was pretty difficult, however: You had to solve 3 different equations in 3 unknowns.  Not too easy! I have taken college chemistry before and I never saw a problem that difficult in the book that was assigned to us.  I was able to easily handle almost all of them, including the ones with an "asterisk" next to the number, signalling difficulty.

 

[Mitch]

Borek has some good ones, we've come along some difficult ones too around chemical forums. But, it really isn't an advanced topic, stoichiometry doesn't yield that much scientific information.

[enahs]

The complexities of three equations or three unknowns are no harder then 1000 equations with 1000 unknowns. There is a mathematical reason for understanding how to do it, and having a good grasp of the method and being able to do it.

The method you did was solving a system of linear equations.
There are quicker and easier methods with matrices.
But of course, any computer made in the last 20 years can do it in a heart beat. I have a 38 year old calculator I got from my father that can solve a 9 system of equations.

If the math in your chemistry classes are hard for you, great, you must learn something new. If the math in your classes are not actually leading to you learn some new scientific principle and is not hard just tedious and time consuming, your professor is doing something wrong.