1. Stoichiometry
Stoichiometry: is the study of the calculations of amounts of substances involved in chemical equations

2. Steps to Solve Problems
1) Determine what you are given and what you need to find
2) Write a balanced chemical equation
3) Determine appropriate conversion factors
Coefficients from balanced equations will convert between different substances

3. Steps to Solve Problems
4) Place in factor label and solve
5) Give units on final answer

4. Mole to Mole Conversions
Calculate the number of moles of Nitrogen (N2) required to produce 7.24 moles of ammonia (NH3)

5. Additional Examples
Calculate the number of moles of H2 needed to produce 6.7 moles of HCl
Calculate the number of moles of H2O produced when 4.56 moles of Oxygen react with Hydrogen

6. How many atoms are in 2.34 mol of Cu? Calculate the molar mass of:
Warm-Up 12/5/2016
How many atoms are in 2.34 mol of Cu?
Calculate the molar mass of:
a) PCl b) NaF c) Cu
3. How many mol are in 4.25 x 1024 particles of PCl3?

7. Additional Problems A. 2 LiOH + CO2  Li2CO3 + H2O
3.00 moles LiOH produces ____ moles H2O
B. NaHCO3 + HCl  NaCl + H2O + CO2
2.34 moles HCl produces ______ moles NaCl
C. N2 + 3 H2  2 NH3
24.56 moles H2 require _________ moles N2

8. Mass-Mole Conversions
Calculate the number of grams of NH3 produced from 3.00 moles of H2 reacting with N2

9. Additional Examples
How many grams of Chlorine can are produced when 4.89 mol of HCl decomposes?

10. Addition Problems
How many grams of H2 are produced when moles of HCl decomposes?
Calculate the number of grams of H2O produced when moles of Oxygen react with Hydrogen

11. Additional Examples 5 C + 2 SO2  CS2 + 4 CO
How many moles of Carbon disulfide can be produced from 8.00 grams of SO2?
How many moles of mercury (II) oxide are needed to produce 125 g of O2?
2 HgO  2 Hg + O2

12. Mass to Mass Problems Example # 1
How many grams of Al2O3 are produced when 48 grams of O2 react with Al?

13. Practice
Calculate the number of grams of H2 needed to produce moles of HCl

14. Practice
Calculate the number of grams of H2O produced when moles of Oxygen react with Hydrogen

15. Example
If 7.99 g of Hydrogen react with Oxygen, how many grams of water are produced?

16. Example
If grams of Magnesium reacts with Chlorine, how many grams of MgCl2 can be produced?

17. Example
If g of Hydrogen react with Oxygen, how many grams of water are produced?