Organic Chemistry

Nuclear Chemistry

Redox Reactions

Acids and Bases

Activation Energy

Enthalpy and Entropy

Ksp

ICE Tables

Here is video on how to use an ICE table to solve for Keq.

Extra Credit Opportunity

You can complete the following for up to 10 points extra credit:

1. Make a rap video that covers the content for one of the chapters that we have covered this semester. You may work in groups of three or four for this extra credit option.

2. Write a short story that covers the content for one of the chapters that we covered this semester.

3. Make a video that would teach your peers how to solve a gas or solution stoichiometry problem.

4. Invent a game that would help your peers review for one of the chapters that we have covered in this semester.

All extra credit assignments will be due by April 23rd. Please submit all extra credit assignments to iimig@dcsdk12.org.

Le Chatelier's Principle

Chemical Equilibrium and Equilibrium Constant Expressions

Collision Theory

Here is a video on collision theory.

Chapter 15 Videos

Here are some videos that might be helpful while you are reviewing for the exam.

A short story about solutions :)

A Solution Story

            This is a story about a pair of friends named solvent and solute. Like most friends, solvent and solute are always together. Their friendship roles are very different, though. Solvent likes to domineer over the relationship—solvent is what does the dissolving. Solute pretty much just follows solvent’s lead—solute is what is being dissolved. Whenever people at school see solute and solvent together, they call them a solution—a solution is a homogeneous mixture that has a solid dissolved in water. Now you would think that solute and solvent always get along, but there are times that their solubility is a little off. What we mean by their solubility is the measure of how well a solute dissolves in a solvent.

            When solute is really pouring his heart into his friendship with solute, their relationship becomes saturated—saturated is when a solution has dissolved as much solute as possible. When solute is not pouring his heart into his friendship with solvent, their relationship becomes unsaturated—unsaturated is when there is a solution that can still dissolve more solute. This wraps up the story about the pair of friends named solvent and solute.

VP, BP, etc. and Solids

Couple videos ove VP, BP, etc.

Video on Solids

IMFs

Here is a video on intermolecular forces.

Phase Changes

Hi there class! Good job on the exams. Here are a couple videos to help with phase change calculations.


Heat of Fusion and Heat of Vaporization

Using Q=S*m*ΔT and Phase Changes
This is a little more advanced than you need--we will not be using the specific heat of ice or water vapor--but it is a good example of a combined problem.

Kinetic Molecular Theory Essay

Students,

For this essay, I want you to write 3-4 paragraphs on the kinetic molecular theory (KMT). The essay should include the five postulates of the KMT and at least two implications of the kinetic theory--the implications must have detailed explanations. You can find an example essay and the rubric for the assignment below. The essay must be TYPED.

The Kinetic Molecular Theory Essay Example

         The kinetic molecular theory is a model that helps explain the behavior of an ideal gas. The model includes the following five postulates:

1.    Gases consist of tiny particles (atoms and molecules).

2.    These particles are so small, compared with the distances between them, that the volume (size) of the individual particles can be assumed to be negligible (zero).

3.    The particles are in constant random motion, colliding with the walls of the container. These collisions with the walls cause the pressure exerted by the gas.

4.    The particles are assumed not to attract or to repel each other.

5.    The average kinetic energy of the gas particles is directly proportional to the Kelvin temperature of gases.

         As one studies the above postulates, a qualitative understanding of the relationship between the kinetic molecular theory and the properties of gas can be formed. It is first important to understand the relationship between the kinetic energy of gas molecules and the temperature of a gas. The higher the kinetic energy—on average—of individual gas particles, the higher the temperature of that gas. Thus, it can be seen that the temperature of a gas, in Kelvin, is directly proportional to the average kinetic energy of the gas particles. Based on the relationship of the kinetic energy of individual gas particles and the temperature of a gas, the kinetic molecular theory can help explain the relationship between gas properties.

         According to Gay-Lussac’s law, the pressure of gas is directly proportional to the temperature of a gas in Kelvin. This is due to the fact that as temperature increases, the average kinetic energy of individual gas particles also increases. Thus, there is an increase in particle movement, which causes more collisions of the gas particles with the wall of its container—which increases the pressure the gas exerts.

         According to Charles’ law, the volume of a gas is directly proportional to the temperature of a gas in Kelvin. It is important to note, though, that this is only true when the volume of the gas container is not fixed (rigid container)—such as a balloon. As the temperature of a gas increases, the average kinetic energy of individual gas particles also increases. This increase in kinetic energy cause more movement in the gas particles, which causes more collisions with the container wall—in turn, the pressure exerted by the gas increases. As a result, the non-rigid container expands and allows the volume of the gas to increase.

RUBRIC

CATEGORY	4	3	2	1
Included Information	Essay includes all five postulates of the kinetic molecular theory and at least two implications of the kinetic molecular theory.	Essay includes at least four postulates of the kinetic molecular theory and at least two implications of the kinetic molecular theory.	Essay includes at least four postulates of the kinetic molecular theory and at least one implication of the kinetic molecular theory.	Essay includes at least four postulates of the kinetic molecular theory and includes no implications of the kinetic molecular theory.
Information Quality	The two implications of the kinetic molecular theory are accurately explained.	The two implications of the kinetic molecular theory are somewhat accurately explained.	The two implications of the kinetic molecular theory are inaccurately explained.	The two implications of the kinetic molecular theory are not explained.
Essay Structure and Grammar	The essay has fewer than 3 grammatical errors and is well structured.	The essay has fewer than 5 grammatical errors and is fairly well structured.	The essay has fewer than 8 grammatical errors and has some structure issues.	The essay has fewer than 10 grammatical errors and is not well structured.

Here are some videos on kinetic molecular theory and gas stoichiometry.

Kinetic molecular theory

Gas Stoichiometry

Hello students!

Since not everyone is getting my videos, I decided to use this blog to disseminate the videos from now on. Below are videos that I have disseminated thus far.

These videos would act as a good review for the upcoming test.