'G al2o3' diaporamas de présentation

I. Physical Properties

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Chemical Reactions

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Stoichiometry and the mole

Stoichiometry and the mole. What is stoichiometry?. Quantitative aspects of chemistry Stoicheon Greek root (element) Metron Greek root( to measure) Calculate how much of a reactant needed to produce a product or how much product could be expected. Stoichiometry. How much do I want?

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Chemical Equations & Reactions

Chemical Equations & Reactions. 4 Al( s ) + 3 O 2 ( g ) 2 Al 2 O 3 ( s ). Chemical Equations. 4 g Al + 3 g O 2 yield 2 g Al 2 O 3. This equation means:. 4 Al atoms + 3 O 2 molecules yield 2 molecules of Al 2 O 3. or.

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#1 What is the molar mass of sucrose? (C 12 H 22 O 11 )

#1 What is the molar mass of sucrose? (C 12 H 22 O 11 ). 12.0 x 12 = 144.0 1.0 x 22 = 22.0 16.0 x 11 = 176.0 total: 342 g/mole. #2 What is the molar mass of each of the following compounds?. Phosphorous pentachloride (PCl 3 ) P; 31.0 Cl; 35.5

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Which has more atoms: 17.0 grams of ammonia, NH 3 , or 72.9 grams of hydrogen chloride, HCl ?

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IV. Gas Stoichiometry at Non-STP Conditions (p. 347-350)

Ch. 10 & 11 - Gases . IV. Gas Stoichiometry at Non-STP Conditions (p. 347-350). A. Gas Stoichiometry. Moles ? Liters of a Gas : STP - use 22.4 L/mol Non-STP - use ideal gas law Non- STP Given liters of gas? start with ideal gas law Looking for liters of gas?

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Page 307 # 1-4

Page 307 # 1-4. Fe 2 O 3 + 2Al ? 2 Fe + Al 2 O 3. Page 307 #1. How many grams of Al are needed to completely react with 135 g of Fe203. Fe 2 O 3 + 2Al ? 2 Fe + Al 2 O 3. Page 307 # 2. How many grams of Al2O3 can form when 23.6 g Al react with excess Fe2O3. -.

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MOLES = MASS/GFM Al

PROBLEM 4 OF LIMITING REAGENT SET. 4 Al + 3 O 2 ? 2 Al 2 O 3 FIRST DETERMINE IF THERE IS A LIMITING REAGENT . FIND MOLES OF ALUMINUM METAL FIND MOLES OF OXYGEN GAS. MOLES = MASS/GFM Al. MOLES = 2.5g Al/ 26.98g/mol. MOLES = 0.092661mol Al. MOLES = MASS/GFM O 2.

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