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COT-1.STOICHIOMETRY.ppt
- 3. 3 do one-mouth rule, avoid using cellular phone while the activity and discussion is ongoing, avoid roaming around the classroom. have time management in every task, observe health protocol.
- 4. REVIEW Guide Question 1.What are the different biomolecules? 2.Name the different examples of biomolecules shows in the picture. 3.Identify what type of biomolecules are they.
- 6. Guess The Word is You and me and
- 8. Stoichiometry Mole to mole conversion
- 9. Performance Task The learners shall be able to make either a poster, a flyer, or a brochure on a product( such as fuels, household, or personal care products) indicating its uses, properties, mode of action, and precautions. Content Standard The learners demonstrate an understanding on the different aspects of chemical changes:
- 10. Melcs Determine the limiting reactant in a reaction and calculate the amount of product formed Code S11/12PS-IIIh-27
- 11. Objectives 1. Identify the given and unknown in a stoichiometry word problem. 2. Correctly label a balanced chemical equation with the given and unknown information 3. Solve a variety of stoichiometry problems. 4. Appreciate the importance of stoichiometry in real life situation.
- 12. Guide Question 1. What is stoichiometry? 2. How to solve one step stoichiometry problem? 3. How it works in real life world?
- 13. LET’S THINK ABOUT IT 1. Which of the following contains the same number of atoms? a. 1 gram of atom b. 1 mole of atom c. 1 liter of atom?
- 14. “stochion” = element “metron” = measurement Stoichiometry is about measuring the amounts of elements and compounds involved in a reaction.
- 15. 1 2 1 How can I have grilled cheese sandwich? 2:1:1 2 bread : 1 cheese : 1 sandwich
- 16. I’m super hungry. I want seven grilled cheese sandwich?
- 17. a. How many bread can we used to have seven grilled cheese? b. How many cheese can we used to make seven grilled cheese? I want seven grilled cheese sandwich. 1 2 1
- 18. 1 2 1 7 1 2 14 A a. How many bread can we used to have seven grilled cheese? b. How many cheese can we used to make seven grilled cheese?
- 19. 1 2 1 7 1 1 B 7 a. How many bread can we used to have seven grilled cheese? b. How many cheese can we used to make seven grilled cheese?
- 20. LET’S DO IT! 1 Mole of N2 reacts with 3 Mole of H2 to produce 2 moles of NH3
- 21. LET’S DO IT! 2 moles of NH3 0.25 moles of NH3
- 22. LET’S DO IT! How many hydrogen molecules would they react with if we have 10 nitrogen molecules? 10 moles of N 3 moles of H 1 moles of N 30 moles of H
- 23. 4NH3 + 5O2 6H2O + 4NO 4 : 5 : 6 : 4 Can mean either: 4 molecules of NH3 react with 5 molecules of O2 to produce 6 molecules of H2O and 4 molecules of NO OR 4 moles of NH3 react with 5 moles of O2 to produce 6 moles of H2O and 4 moles of NO TRY IT AGAIN !
- 24. 4NH3 + 5O2 6H2O + 4NO How many moles of H2O are produced if 2.00 moles of O2 are used? 2.00 mol O2 2.40 mol H2O = Notice that a correctly balanced equation is essential to get the right answer 6 mol H2O 5 mol O2 TRY IT AGAIN !
- 25. 4 mol NO 6 mol H2O 4 NH3 + 5 O2 6 H2O + 4 NO How many moles of NO are produced in the reaction if 15 mol of H2O are also produced? 15 mol H2O 10. mol NO = TRY IT AGAIN !
- 26. Question 1. What is stoichiometry? 2. What are the steps in solving stoichiometry problem?
- 27. Stoichiometry is about measuring the amounts of elements and compounds involved in a reaction.
- 28. Step 1 Step 2 STEP IN SOLVING STOICHIOMETRY Step 3
- 29. Activity *Group 1 “Pancake for Breakfast” Learners will prepare pancakes for breakfast using steps in stoichiometry. *Group 2 “Adobo for Lunch” The learners will act as a Filipino Chef who loves to cook adobo. *Group 2 “Airbag for Safe Travel” The learners will be given a problem about the right amount for airbag used for safety travel. *Group 4 “Fertilizer for Veggies” The teacher will let the learners to formulate fertilizer for their vegetable in the garden.
- 30. CRITERIA EXCELLENT 5 points VERY GOOD 4points GOOD 3 point FAIR 2 point Need Improvement 1 point SOLVING SKILLS All correct. 4 out of 5 is correct. 3 out of 5 is correct. 2 out of 5 is correct. 1 out of 5 is correct. CRITERIA VERY GOOD 5 points GOOD 3 points FAIR 1 point GROUP BEHAVIOR AND PARTICIPATION All members of the group were actively participated and show good manner in the activity Most members of the group were actively participated and show good manner in the activity Only few members of the group were actively participated and show good manner in the activity TIME MANAGEMENT The group finished the activity on time. The group extend 1 to 2 minutes from the given time The group extend more than 2 minutes from the given time . PRESENTATION The audience was engaged and presenter held audience’s attention. Majority of the audience was engaged and presenter held audience’s attention. Half of the audience was engaged and presenter held audience’s attention. RUBRIC
- 31. Activity Time
- 33. CATEGORIES GROUP 1 GROUP 2 GROUP 3 GROUP 4 SOLVING SKILLS GROUP BEHAVIOR AND PARTICIPATION TIME MANAGEMENT PRESENTATION TOTAL RUBRIC
- 37. Stoichiometry is the calculation of _________ and __________ in a chemical reaction. _____________ is an important concept in chemistry that helps us use balanced ______________ to calculate amounts of reactants and products. To solve for the stoichiometry we use of __________ from the balanced chemical equation. WORD BANK: Products Stoichiometry Ratio Reactants Chemical equation Chemistry Products Reactant Stoichiometry Chemical equation Ratio
- 38. Using the given chemical equation below. How many moles of HCl are needed to react with 0.87 moles of Al? 0.87 moles of Al 6 moles of HCl 2 moles of Al 2.61 moles of HCl
- 39. 1. Bring periodic table. 2. Study the following stoichiometry; a. Mass to mass conversion b. Mass to mole conversion c. Mole to mass steps conversion
- 40. Balance the equation. Convert units of a given substance to moles. Using the mole ratio, calculate the moles of substance yielded by the reaction. Convert moles of wanted substance to desired units.
Editor's Notes
- Which is equal to 600 billion trillion of atom Remember that just like a dozen is twelve things, a mole is simply very large number of things. And because the mole refers to the number of things, we will need to use the extensively when we do stoichiometry.
- It’s a lot like the way a chef measures the ingredient of a recipe. In fact, chemistry is a lot like cooking. Imagine for a second that you’re home alone and craving some grilled cheese sandwiches, but, you don’t know how to make one.
- . So there you go, you’ve got your recipe. In chemistry the recipe is the balance chemical equation. So where does stoichiometry come in? let’s suppose you are super hungry and you want to make 7 grilled cheese sandwiches. You need to know how much of each ingredient to use. Lets start with the first ingredient.
- . So there you go, you’ve got your recipe. In chemistry the recipe is the balance chemical equation. So where does stoichiometry come in? let’s suppose you are super hungry and you want to make 7 grilled cheese sandwiches. You need to know how much of each ingredient to use. Lets start with the first ingredient.
- . So there you go, you’ve got your recipe. In chemistry the recipe is the balance chemical equation. So where does stoichiometry come in? let’s suppose you are super hungry and you want to make 7 grilled cheese sandwiches. You need to know how much of each ingredient to use. Lets start with the first ingredient. Notice that this is really a unit problem and the balance equation is our conversion factor.
- . So there you go, you’ve got your recipe. In chemistry the recipe is the balance chemical equation. So where does stoichiometry come in? let’s suppose you are super hungry and you want to make 7 grilled cheese sandwiches. You need to know how much of each ingredient to use. Lets start with the first ingredient. Notice that this is really a unit problem and the balance equation is our conversion factor.
- Okay, now we are going to do the exact same things with chemical that we just did with food. Check out this reaction. This reaction is known as the Haber process, which is primarily used to make fertilizer. Fertilizer helps crops grow and becomes part of our food. In fact, more than half of the Nitrogen in your body probably come from this reaction, so… it’s pretty important. As it’s written, the reaction is not balance. The 1st step in solving stoichiometry problem is to balance the equation. Any one from the class who wants to balance the said equation?
- Okay, now we are going to do the exact same things with chemical that we just did with food. Check out this reaction. This reaction is known as the Haber process, which is primarily used to make fertilizer. Fertilizer helps crops grow and becomes part of our food. In fact, more than half of the Nitrogen in your body probably come from this reaction, so… it’s pretty important. As it’s written, the reaction is not balance. The 1st step in solving stoichiometry problem is to balance the equation. Any one from the class who wants to balance the said equation?
- Okay, now we are going to do the exact same things with chemical that we just did with food. Check out this reaction. This reaction is known as the Haber process, which is primarily used to make fertilizer. Fertilizer helps crops grow and becomes part of our food. In fact, more than half of the Nitrogen in your body probably come from this reaction, so… it’s pretty important. As it’s written, the reaction is not balance. The 1st step in solving stoichiometry problem is to balance the equation. Any one from the class who wants to balance the said equation?