Three Methods to Find Limiting and Excess Reagents

The previous video introduced you to the concept of stoichiometry. Now that you know what it is and how to use it, it is time to apply the idea to finding limiting and excess reagents. In this video I propose three methods for finding them and one of them does not use the stoichiometry grid at all.

Script:

Useful links for the video:
Rounded Periodic Table (for reference):

Balancing Equations (for problem 1)

Balancing Equations (for problem 2)

Calculating Formula Mass (for both problems)
Stoichiometry can be the bane of many a first-year chemistry student. In this four-part series, I begin by introducing an equation-like grid which, if you know how to use it, will make quick work of mass-mass stoichiometry problems.

Script:

Useful links for the video:
Rounded Periodic Table (for reference):

Balancing Equations (for problem 1)

Balancing Equations (for problem 2)

Calculating Formula Mass (for both problems)

Stoichiometry Part 1

Contact:

Twitter:
@animchemtxtbook (The Animated Chemistry Textbook)

References (Science and Pictures)
See Script

Coding Source

0:00 - Introduction
0:18 - Limiting and Excess Ingredients
1:04 - A Typical Question
2:06 - The MethodOne Clinic (Limiting)
3:24 - The MethodOne Clinic (Excess)
4:37 - The MethodTwo Clinic
5:39 - The MethodThree Clinic
6:51 - Final Question
7:53 - Conclusion

#chemistry #science #education

[tallbrowndude]

in method 1 of the last, practice question one of calculation were wrong u wrote 54 instead of 27 for o2 oxygens calculation