Stoichiometry PowerPoint

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Examples • If we start with 50.0grams of methane, how many grams of water will be produced? • Again the procedure is the same. • 50.0g CH 4 x (1 mol/16.0g) = 3.12 mol CH 4 • 3.12 mol CH 4 x (2 mol H 2 O/1 mol CH 4 ) = 6.24 mol H 2 O • 6.24 mol H 2 O x (18.0g/1 mol) = 112 g H 2 O • The 3-step sequence is the same: • gknown mol known mol unknown g unknown
Curve Ball • Starting with the same 50.0g of CH 4 , how many liters of CO 2 gas at STP will be produced? • The problem starts out just the same as before: Convert g known to moles. • 50.0g CH 4 x (1 mol/16.0g) = 3.12 mol CH 4 • Next, use the mole ratio from the equation to convert mols known to mols unknown. • 3.12 mol CH 4 x (1 mol CO 2 /1 mol CH 4 ) = 3.12 mol CO 2
Page 1 and 2: Stoichiometry Connecting Mathematic
Page 3 and 4: Understanding Stoichiometry • Hyd
Page 5 and 6: Understanding Stoichiometry • How
Page 7 and 8: The Magic of Avogadro’s Number
Page 9 and 10: Conservation of Mass • All of the
Page 11 and 12: Mg + F 2 MgF 2 • Did your drawin
Page 13 and 14: 4 Al + 3 O 2 2 Al 2 O 3 • Partic
Page 15 and 16: Mass Ratios • Determining mass ra
Page 17 and 18: Now The Fun Begins • Once you kno
Page 19 and 20: Mole Ratio • Three times as much
Page 21 and 22: Solving Stoichiometry Problems •
Page 27 and 28: Examples • Let’s try a couple o
Page 29: Examples • If we start with 50.0g
Page 33 and 34: Try One on Your Own • Fe 2 O 3 +
Page 35 and 36: Simplify • As you become more pra

Stoichiometry PowerPoint

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