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Stoichiometry

Stoichiometry. “ stochio ” = “ metry ” =. Stoichiometry. Consider the chemical equation: 4NH 3 + 5O 2  6H 2 O + 4NO There are several numbers involved. What do they all mean?. 4NH 3 + 5O 2  6H 2 O + 4NO. Stoichiometry.

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Stoichiometry

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  1. Stoichiometry

  2. “stochio” = “metry” = Stoichiometry Consider the chemical equation: 4NH3 + 5O2 6H2O + 4NO There are several numbers involved. What do they all mean?

  3. 4NH3 + 5O2 6H2O + 4NO Stoichiometry Recall that Chemical formulas represent numbers of atoms:

  4. 4NH3 + 5O2 6H2O + 4NO Stoichiometry Recall that Chemical formulas have molar masses:

  5. Consider: 4NH3 + 5O2 6H2O + 4NO Stoichiometry Recall that Chemical formulas are balanced with coefficients:

  6. 4NH3 + 5O2 6H2O + 4NO Stoichiometry With Stoichiometry we find out that 4 : 5 : 6 : 4 do more than just multiply atoms.

  7. 4NH3 + 5O2 6H2O + 4NO Stoichiometry 4 : 5 : 6 : 4 Can mean either:

  8. Stoichiometry Question (1) 4NH3 + 5O2 6H2O + 4NO • How many moles of H2O are produced if 2.00 moles of O2 are used? Notice that a correctly balanced equation is essential to get the right answer

  9. Stoichiometry Question (2) 4NH3 + 5O2 6H2O + 4NO How many moles of NO are produced in the reaction if 15 mol of H2O are also produced?

  10. Have we learned it yet? Try this on your own: Given: 4NH3 + 5O2 6H2O + 4NO a) How many moles of H2O can be made using 1.6 mol NH3?

  11. Answers 4NH3 + 5O2 6H2O + 4NO a)

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