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Chemistry Week 25. Please get out your calculator !. March 4, 2013. AGENDA: 1 – Bell Ringer 2 – CN: Mole to Mole Stoichiometry 3 – Work Time. Today’s Goal: Students will be able to convert between moles in balanced chemical equations. Homework Mole to Mole Stoichiometry
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Chemistry Week 25 Please get out your calculator!
March 4, 2013 AGENDA: 1 – Bell Ringer 2– CN: Mole to Mole Stoichiometry 3 – Work Time Today’s Goal: Students will be able to convert between moles in balanced chemical equations. Homework • Mole to Mole Stoichiometry • Friday is the Last Day to make up last week’s quiz.
Monday, March 4th Objective: Students will be able to convert between moles in balanced chemical equations. Bell Ringer: A shop owner needs to build 10 bicycless by the end of the day to fill an order. There are 12 bike frames, 11 handlebars, 13 seats, and 18 wheels available in the shop. Is the shop owner able to fulfill this order? Explain your answer.
Monday, March 4th Objective: Students will be able to convert between moles in balanced chemical equations. Bell Ringer: A shop owner needs to build 10 bicycless by the end of the day to fill an order. There are 12 bike frames, 11 handlebars, 13 seats, and 18 wheels available in the shop. Is the shop owner able to fulfill this order? Explain your answer.
Monday, March 4th Objective: Students will be able to convert between moles in balanced chemical equations. Bell Ringer: A shop owner needs to build 10 bicycless by the end of the day to fill an order. There are 12 bike frames, 11 handlebars, 13 seats, and 18 wheels available in the shop. Is the shop owner able to fulfill this order? Explain your answer.
Monday, March 4th Objective: Students will be able to convert between moles in balanced chemical equations. Bell Ringer: A shop owner needs to build 10 bicycless by the end of the day to fill an order. There are 12 bike frames, 11 handlebars, 13 seats, and 18 wheels available in the shop. Is the shop owner able to fulfill this order? Explain your answer.
March 4, 2013 AGENDA: 1 – Bell Ringer 2– CN: Mole to Mole Stoichiometry 3 – Work Time Today’s Goal: Students will be able to convert between moles in balanced chemical equations. Homework • Mole to Mole Stoichiometry • Friday is the Last Day to make up last week’s quiz.
Monday, March 4th Bell Ringer: A shop owner needs to build 10 bicycles by the end of the day to fill an order. There are 12 bike frames, 11 handlebars, 13 seats, and 18 wheels available in the shop. Is the shop owner able to fulfill this order? Explain your answer. Answer: No. With only 18 wheels, and each bike needs two wheels, he can only make 9 bikes.
Cornell Notes • Topic: Mole to Mole Stoichiometry • Date: 3/4/2013 • Stoichiometry is a quantitative method of applying the law of conservation of mass to determine how many moles of reactants must be present to produce a certain amount of products. What is stoichio-metry?
Cornell Notes Think of it as a recipe! Recipe = balanced chemical reaction! Coefficients are the amounts! 1 N2 + 3 H2 2 NH3 = N = H + 1 N2 mixes with 3 H2 to form 2 NH3
Creating Molar Ratios How can we use this? 1 N2 + 3 H2 2 NH3 How many moles of H2would it require to make 12 moles of NH3? • Start with given (include units!) • Create molar ratio from balanced chemical reaction. 3 mol H2 x 3 mol H2 2 12 mol NH3 x = 2 mol NH3 = 18 mol H2
Practice Problem 2 HCl H2 + Cl2 How many moles of H2will form from 6 moles of HCl? 1 mol H2 6 x 1 mol H2 2 6 mol HCl x = = 3 mol H2 2 mol HCl
Problem Set-Up GIVEN x WANT_ = ___WANT GIVEN
Problem Solving Decision Tree Read the problem If moles and grams If moles and particles Calculate Molar Mass If particles moles If moles grams If grams moles If moles particles Multiply by molar mass Divide by molar mass Multiply by 6.02 x 1023 Divide by 6.02 x 1023
