2/20/2012 Standards: z Objectives: ● No School – President’s Day DO 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 + O > Fe 2 O 3 HOMEWORK: 1. Ch 12.1 PP's, P (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 (5 pts) Std 3e

Fe + O > Fe 2 O 3 : : : : : : 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 mol : apples oranges 1 apples 3 oranges = 3 mol oranges apples 1 mol

6.02 x mol : apples oranges 1 apples 3 oranges = 3 mol x

Introduction to Stoichiometry stoichiometry song youtube.co m/watch?v =rWCv- ymhpfY Professional video for how to use stoichiometry in balanced equations youtube.co m/watch?v =q_rbjDGi yWM

1 & 2 3 & 4 5 & 6 7 & 8 9 & & 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 + H 2 O ---> NaOH + H 2 + heat ● mol to mol (p 359) and mol to mass conversion (p. 360) with examples DO NOW: 1. given 3.5 mol H 2, how many gram of H 2 O can be made? H 2 + O > H 2 O HOMEWORK: 1. Ch 12.2 PP's, p (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 (a-e), 2 (a-c), 3 (a & b) (5pts) 3e

Period 5 only

Given: 1.25 mol C 2 H 4 Find: ? g CO 2 could be made?

2/23/2012 Standards: 3 Stoichiometry Objectives: ● 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 O 2 How many g of H 2 O can be made? H 2 + O > H 2 0 HOMEWORK: 1. Ch 12.2 PP's p & 14 App A Ch 12-2 p ,8, & 9 Ans: g CO 2, g H 2 SO 4, g CO 2 = ================================================== STAMPS: ● Journal 2/22 1. Ch 12.2 PP's, p (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 givengiven givengiven givengiven findfind findfind findfind balan ced equa tion grams ---> mol ---> RP givengiven givengiven givengiven findfind findfind findfind bala nce d equ atio n grams ---> mol ---> RP givengiven givengiven givengiven findfind findfind findfind bala nce d equ atio n grams ---> mol -- -> RP givengiven givengiven givengiven findfind findfind findfind bal anc ed equ atio n grams ---> mol ---> RP givengiven givengiven givengiven findfind findfind findfind bala nce d equ atio n grams --- > mol ---> RP givengiven givengiven givengiven findfind findfind findfind balancedequationbalancedequation

grams ---> mol ---> RP given find balanced equation

6.02 x mol Given Find x = H 2 + O > H 2 0 Given: 8.5g H 2 Find: g H 2 O x xx = 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 , 16 (copy the questions & give your best answers) Ch 12 Assess p Ans: 6.72 g CH 4 App A p , 6, & 10 (5 pts) Std 3 Answers for App A problems: mol HCl ; mol Cr 2 O 3 ; g asprin ========================================================== BASKET: ● Ch 12.2 PP's p & 14 App A Ch 12-2 p ,8, & 9 (5 pts) Std 3