The Mole Concept Using the 7's Format.pptx

This tackles the mole in an atom with the connections to the hydrogen composition in each compound.

1. The Mole Concept

2. The module focuses on achieving this learning competency: Use the mole concept to express mass of substances. (S9MT-IIi-19)

3. - differentiate molecular unit from formula unit and compute for the molecular mass; - define mole and calculate for the number of moles of given compounds; After going through this topic, you are expected to:

4. ELICIT

5. Guide Questions: 1. Which of these sets of hydrocarbons is alkane? 2. Which of these are alkene and alkynes? 3. How will you describe the bond between b and c ? 4. What elements are mostly present in all the three given compounds?

6. A. ALKANES

7. A. ALKENES

8. A. ALKENES

9. ENGAGE

10. ACTIVITY 2: COUNT ME IN?

11. PAIR OF SOCKS

12. A DOZEN EGGS

13. REAM OF PAPER

14. 1 CASE OF SOFTDRINKS

15. EXPLORE

16. ACTIVITY 3: WHAT IS A MOLE? DIRECTIONS: IN 60 SECONDS KINDLY SEARCH FOR THE MEANING OF A MOLE. GIVE ITS EQUIVALENT IN NUMBERS AND WHO DISCOVERED IT.

17. EXPLAIN

18. What is a mole? A mole is used to count entities on a microscopic level like atoms, molecules, ions, particles etc.

19. What is a mole? In Chemistry, mole (mol) is simply defined as the quantity of a substance which contains the same number of particles.

20. In counting the number of atoms, we use a constant number called Avogadro’s number which is equivalent to a MOLE.

21. AVOGADRO’S NUMBER 1 MOLE (mol) Named in honor of the Italian scientist AMADEO AVOGADRO.

22. AVOGADRO’S NUMBER 1 MOLE (mol) EXAMPLE: 1 mol of 12 g Carbon

23. Find the Molar Mass of Element. EXAMPLES: HYDROGEN AND CARBON ELEMENT QUANTITY AVERAGE ATOMIC MASS SUBTOTAL HYDROGEN 1 X 1.01 grams (g) = 1.01 g CARBON 1 X 12.00 grams (g) = 12.01 g

24. ELEMENT QUANTITY AVERAGE ATOMIC MASS SUBTOTAL HYDROGEN X = ELEMENT QUANTITY AVERAGE ATOMIC MASS SUBTOTAL CARBON X =

25. ELABORATE

26. ACTIVITY 2: Find the Molar Mass of Compound! EXAMPLE : Sugar ( C12H22 O11 ) ELEMENT QUANTITY AVERAGE ATOMIC MASS (g) SUBTOTAL CARBON 12 X 12 = 144 g HYDROGEN 22 X 1.01 = 22 g OXYGEN 11 X 16.01 = 176 g

27. ACTIVITY 3: Molecular Mass Compute the molecular mass of the given compounds. Write your answer on a separate sheet of paper.

28. Mefenamic acid (C13H18O2) Limewater, Ca(OH)2

29. EXTEND

30. Take Home Activity Activity 4. Proper Label! Safety inside the chemistry laboratory is important. As part of safety protocols in the laboratory all chemicals must be properly stored and labelled. Let us write the necessary information for each chemical in the laboratory. Directions: Complete the table by providing the necessary information. Write your answer on a separate sheet of paper.

31. 197 342 44 Molecule Atom 684 132 2 6.02x   12.04x   18.06x   12.04x  

32. EVALUATE