2. Catalyst What are the components that affect the rate at which something dissolves? If I increase the temperature will a solute dissolve more slowly or more quickly? End

4. What Is This Reaction? Fe 2 O 3 + 2 Al  2 Fe + Al 2 O 3 If I have 2 mole of thermite, how do I determine the number of moles of Fe produced?

5. Lecture 4.4 – Moles to Moles

6. Today’s Learning Targets LT 4.5 – I can convert from moles of one compound to moles of another compound using the mole ratio from a balanced chemical reaction.

7. Grams of Substance A Grams of Substance B Volume of Substance B Atoms of Substance A Moles of A Moles of B Atoms of Substance B Molarity of Substance A Focus for Last Unit

8. Grams of Substance A Grams of Substance B Molarity of Substance B Atoms of Substance A Moles of A Moles of B Atoms of Substance B Molarity of Substance A

9. What is a mole ratio?

10. I. The Importance of Balanced Reactions We have been balancing chemical reactions so that we can use them in these calculations. Without a balanced reaction, we CANNOT do the calculations that we use in stoichiometry.

11. II. Mole Ratios The coefficients in a balanced equation represent the moles of each substance. These coefficients can be used as a conversion factor known as a mole ratio Mole ratios allow for us to convert between moles of two substances

12. Mole Ratio for Mg to Mg 3 N 2 3Mg + N 2  Mg 3 N 2 Moles Mg Moles Mg 3 N 2 3 moles 1 moles

13. Class Example For the following reaction: NaCl + CaO  Na 2 O + CaCl 2 Write the mole ratio of NaCl to CaCl 2 ?

14. Table Talk For the following reaction: _____Fe + ____CuSO 4  ____Cu + ___Fe 2 (SO 4 ) 3 Write the mole ratio of Fe to Cu?

15. How do we convert between moles of two substances?

16. I. Mole to Mole Conversion Factor Our conversion factor for converting moles to moles is:

17. Class Example For the following chemical reaction of the airbag in our car: NaN 3 (s)  Na (s) + N 2 (g) If you have 6 moles of NaN 3, how many moles of Na will this reaction produce?

18. Table Talk For the following reaction: N 2 O 5 + H 2 O  NH 4 OH + O 2 If you have 5 moles of N 2 O 5 determine the number of moles of NH 4 OH do you get?

19. SUMMARIZE

20. White Board Problems

21. Question 1 For the following reaction: 2HCl + K 2 SO 3  2KCl + H 2 SO 3 You react 7 moles of HCl with excess K 2 SO 3. Determine the number of moles of H 2 SO 3 that will be produced in this reaction.

22. Question 2 For the following reaction: CS 2 + 2 O 2  C + 2 SO 2 You have 4 moles of CS 2, how many moles of SO 2 are produced in this reaction?

23. Question 3 If you end up with 272 grams of NH 3 in the following reaction: 3 NH 4 SCN + FeCl 3  3 NH 3 (g) + 3 HCl + Fe(SCN) 3 How many moles of FeCl 3 were used to produce this amount of NH 3 ?

24. Question 4 For the following reaction: 2KClO 3  2KCl + 3O 2 How many moles of O 2 will be produced if you start with 7 moles of KClO 3 ?

25. Question 5 You are performing the following chemical reaction in the lab: N 2 + 3H 2  2NH 3 You have 5 moles of N 2 and excess H 2. How many grams of NH 3 will you produce once the reaction is produced?

26. Around the World Attempt the Around the World for today under Chemistry File Cabinet – Week of Nov. 12, 2013 AP.4.4.Around the World

28. Closing Time Lab Report Next Week! Homework 4.4 – Moles to Moles