Friday, December 11, 2020

VIDEO: STATES OF MATTER, PART 2

In this VIDEO, Mr. Hatfield illustrates the compound gas law, the ideal gas law and its applications, the limits of the ideal gas law and that law's relationship to kinetic molecular theory (KMT).



VIDEO: IDEAL GAS LAW PROBLEMS

In this VIDEOMr. Hatfield demonstrates how to use the ideal gas law to solve for unknown variables of pressure, volume, temperature or number of moles.

Using Avogadro's number, the number of moles can be converted into an estimate of the number of particles (atoms or molecules) present in a given sample of a gas.




Thursday, December 10, 2020

APPROACHING THE END OF THE SEMESTER


























Students: Today is Thursday, December 9th.   Today and tomorrow will be the last day of new instruction in the course.  Our focus will be on mastering calculations that use the Ideal Gas Law.  

The Assignment you receive inside your Teams Channel ("Ideal Gas Problems") is the final regular Assignment of the semester.  It is due on the day of your Final.  All other work previously assigned in the course is due on Monday, December 14th.

Monday and Tuesday next week (Dec. 14th and 15th) will be devoted to taking a 'Practice Final' which will have questions similar to the Final.  You will be given a Study Guide as a Word document on that date, to go with the 'Practice Final', which will be given through Quizizz.   Any questions answered correctly on the 'Practice Final' will be added to your grade as extra credit.

Wednesday and Thursday next week (Dec. 16th and 17th) are the day of your actual SEMESTER FINAL, which will be given through a different on-line platform. 

On the day of the Final, you will be given the opportunity to demonstrate your ability to do calculations for extra credit, but you will need to request this through email, and this final opportunity must be returned via email by midnight on Friday, Dec. 18th.

Wednesday, December 2, 2020

VIDEO: THREE GAS LAWS

In this VIDEO, Mr. Hatfield demonstrates the steps for solving problems based on one of three gas laws: Boyle's Law, Charles' Law and Gay-Lussac's Law. In all three examples, students should first write out the four variables, three of which are given and one is unknown. Students will then isolate the unknown by eliminating one or more variables on both sides of the equation to solve.