Ellie-Tuesday, 3/7

Today in class we...

1) Picked up 4 journal pages and a short reading

~The four journal pages were "Frayer Charts", "Equilibrium Notes", "Equilibrium 2"(page 12), and "Le Chatelier 1"(page 4)

~The reading was on equilibrium

2) Read through the short reading. Used the reading to fill in The Definition, Picture, Non-example, and Example on the "Frayer Charts" journal page.

3) Went over Frayer Charts and had people come up to the projector and show their examples/pictures.

4) Went through the Equilibrium Notes, and went through how to solve if you shift to left (reverse) or right (forward)

~A(g)+B(G)<---->AB(g)+heat

More/Less Products:

Add more AB, shift left

Take away AB, shift right

More/Less Reactants:

Add more B, shift right

Take away A, shift left

Energy:

Lower the temp., shift right

Increase the temp., shift left

Pressure:

Increases pressure, shift right

Decreases pressure, shift left

5) Moved on to Number one on the journal page "Equilibrium 2"

1. 2 NH3(g) <----> N2(g)+3H2(g) K=6.56 x 10^-3

In an equilibrium mixture of the gases above [N2]=0.045M and [H2]=0.0056M. Find [NH3].

K=[N2] x [H2]^3

---------------

[NH3]^2

6.56 x 10^-3

.00656= .045M x (.0056)^3

------------------------

X^2

.00656= .045 x .000000176

------------------------

X^2

X^2 x .00656 .000000008

----------------- = ------------------

.00656 .00656

Square root of x^2=square root of .00000125

X=.001118

6)Did number one on Le Chatelier 1

a. carbon dioxide is removed- right

b. water vapor is added-right

c. the pressure is increased-NS

7) Was assigned homework: to do numbers 2 and 4 on Equilibrium 2 and numbers 2 and 3 on Le Chatelier 1