CH16 – Cookie Recipe

Dates

• P1 – Thursday, February 16th
• P3 – Friday, February 17th
• P5 – Friday, February 17th

Class Business

• LNB comments
• Hand back Tests
• Answer Key Posted
• Lots of Sig Fig variance (please review)
• Reminder – graded on HOW YOU SHOW WORK

Samoas Cookie Recipe = 24 Cookies [YUMMY]

• 2 cups flour
• 1/4 teaspoon baking powder
• 1 teaspoon salt
• 1 cup butter
• 1/2 cup sugar
• 1/2 teaspoon vanilla extract
• 3 cups shredded coconut
• 12 ounces chewy caramels
• 4 tablespoons milk
• 12 ounces dark chocolate

Predicting Yield – How Much Can I Make?

• 1 bag flour (2 lb)
• 1 box baking powder (1/4 lb)
• 1 container salt (1/2 lb)
• 4 sticks butter
• 1 bag sugar (2 lb)
• 1 small bottle vanilla extract (8 oz)
• 1 bag shredded coconut (6 cups)
• 1 bag chewy caramels (24 oz)
• 1/2 gallon milk
• 1 bar dark chocolate (16 oz)

Factors

• How many cookies can I make?
• What factors determine how many are produced?
• How do I determine this?
• How do I recognize a problem of this type
• “Before & After” Chart

Limiting Reactant Problems

• given information about two reactants
• predict how much of each is necessary to use all of it
• determine the scenario that can happen
• use that to proceed
• Note: shortcuts don’t always bear results!
• Examples (Ch. 3: 115, 116, 117)

Homework

• No HW – it is Febraury Break
• I will see you when you return