2/20/2012 Standards: z Objectives:  ●  No School – President’s DayDO NOW: 1.

HOMEWORK:1. ======================================================STAMPS:  ●  Journal

BASKET:

2/21/2012 Standards: 3e (calc. mol & masses of reactants <---> products) Objectives: ●   What is stoichiometry? ●   3 Relationships for stoichiometric calculation - mole-mole vs

molecule-molecule vs gram-gram ●   Stoichiometry from balanced equations  ●   Mole ratios - ratios between any two substances in a balanced chemical eqn DO NOW: 1. Balance this equation and give the molecule and mole ratioes. 3 pts ex. cr. if you figure out the gram ratios: Fe + O2 -------> Fe2O3 HOMEWORK: 1. Ch 12.1 PP's, P. 356   1 (a-e), 2 (a-c), 3 (a & b) (5pts) 3e 2. EXTRA CREDIT Bring in a recipe for any food dish along with a sample made with that recipe. Possible of 5 pts extra credit. Due no later than tomorrow. ==========================================================STAMPS:   ●  Journal 2/16 (day before quiz) 1. SN Ch 12.1 p. 155-158 (5 pts) Std 3e

Fe + O2 -------> Fe2O3

: :

: :

: :

RP (molecule/atom)

ratios

gram ratios

mol ratios

We always use a balance equation for Stoichiometry

see below for molar masses

This is just like p. 356 PP's

1 (a-e)

6.02 x 10231 mol

:

apples oranges

1 apples 3 oranges

=

3 mol

orangesapples

1 mol

6.02 x 10231 mol

:

apples oranges

1 apples 3 oranges

=

3 molx

Introduction to Stoichiometrystoichiometry song

http://www.youtube.com/watch?v=rWCv-ymhpfY

Professional video for how to usestoichiometry in balanced equations http://

www.youtube.com/watch?v=q_rbjDGiyWM

1 & 23 & 45 & 6

7 & 89 & 1011 & 12

This is just like the problems on p. 357 PP's 2 (a-c) and 3 (a & b)

MOLE RATIOS

This is just like the problems on p. 357 PP's 2 (a-c) and 3 (a & b)

2/22/2012 Standards: 3 Objectives:

●   AP Chem - hard and fun - DVD from Mrs. Taylorson     ●   Demo             Na + H2O   ---> NaOH + H2 + heat

●   mol to mol (p 359) and mol to mass conversion (p. 360) with examples DO NOW: 1. given 3.5 mol H2 , how many gram of H2O can be made?

H2 + O2 ----> H2OHOMEWORK: 1. Ch 12.2 PP's, p. 359-360 9-12 (5 pts) Std 3 2. See HW page, assignment #2 for Ex Cr opty ==========================================================STAMPS: Journal 2/21

1. Ch 12.1 PP's, P. 356   1 (a-e), 2 (a-c), 3 (a & b) (5pts) 3e

Period 5 only

Given: 1.25 mol C2H4 Find: ? g CO2 could be made?

2/23/2012 Standards: 3 StoichiometryObjectives:  ● Be able to convert from grams of any reactant or product to grams of any

other reactant or product. DO NOW: 1. Given: And you are given 8.5 g O2 How many g of H2O can be made?

H2 + O2 ----> H20HOMEWORK: 1. Ch 12.2 PP's p. 362   13 & 14 App A Ch 12-2 p. 878   7,8, & 9 Ans: 7.   924g CO2,    8.   314g H2SO4 ,    9.   1.31g CO2

===================================================STAMPS:   ●  Journal 2/22 1. Ch 12.2 PP's, p. 359-360 9-12 (5 pts) Std 3

No where - - - but there

I've learned:

That being kind is more important than being right

What are these?

grams ---> mol ---> RP

grams ---> mol ---> RP

given

given

given

find

find

find

<--

-->bala

ncedequation

grams --->

mol ---

> RP

grams --->

mol ---

> RP

gi

ve

ng

iv

en

gi

ve

n

fi

nd

fi

nd f

in

d<--- ->bala

nced

equatio

n

grams --->

mol ---

> R

Pgram

s ---> m

ol ---

> R

P

gi

ve

n

gi

ve

n gi

ve

n

fi

nd

fi

nd f

in

d

<---->bal

anced

equatio

n

grams ---> mol ---> RP

grams ---> mol ---> RP

given

given

given

find

find

find

<--

-->

balancedequation

grams -

--> m

ol

---> R

P grams -

--> m

ol

---> R

P

gi

ve

ng

iv

en

gi

ve

n

fi

ndf

in

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fi

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<---

->bal anc edequ atio

n

grams ---> mol ---> RPgrams ---> mol ---> RP

given

given

given

find

find

find

<---->

balancedequation

grams ---> mol ---> RP

grams ---> mol ---> RP

given givengiven

find findfind

<---->

balancedequation

6.02 x 1023mol Given Find

x =

H2 + O2 ----> H20

Given:8.5g H2

Find:g H2O

x x x =

x

2/24/2012 Standards: 3 Objectives:  ●  Students will complete or get most of the homework problems done in class.DO NOW: 1. Complete as much of your Homework as possible.HOMEWORK: 1. Ch 12.2 Assess p. 363  15, 16 (copy the questions & give your best answers)

Ch 12 Assess p. 380   69 Ans: 6.72 g CH4 App A p. 877-878   5, 6, & 10 (5 pts) Std 3

Answers for App A problems: 5. 0.600 mol HCl ; 6. 2.29 mol Cr2O3 ; 10. 195.7 g asprin

==========================================================BASKET:  ●  Ch 12.2 PP's p. 362   13 & 14

App A Ch 12-2 p. 878   7,8, & 9 (5 pts) Std 3