Lecture on Mole to Mole Ratios

Definition

• Mole to Mole Ratio: A conversion factor used to convert between different compounds in a chemical reaction.
• It is used when changing from one compound to another.

Source of Mole Ratios

• Balanced Equation: The mole to mole ratio is derived from the coefficients in a balanced chemical equation.
• Coefficients represent the number of moles of each compound.

Example Calculations

Example 1: Reaction of O2 and H2 to form H2O

• Given: 2.5 moles of O2
• Find: Moles of H2O
• Steps:
  • Use a balanced equation to find mole ratio.
  • Given: 2.5 moles of O2
  • Find: Moles of H2O
  • Align moles of O2 across to cancel out.
  • Mole ratio from balanced equation, e.g., O2 to H2O.
  • Calculation: Multiply and get 5.0 moles of H2O.

Example 2: Moles of O2 from CO2

• Given: 7.03 moles of CO2
• Find: Moles of O2
• Steps:
  • Use balanced equation for mole ratio.
  • Given: 7.03 moles of CO2
  • Align CO2 moles across to cancel out.
  • Mole ratio: 5 moles of O2 per 3 moles of CO2.
  • Calculation: Multiply, divide by 3, get 11.7 moles of O2.

Additional Resources

• Check the description box for practice problems and step-by-step answers.
• Consider live tutoring for in-depth understanding.

Conclusion

• Emphasis on understanding concepts and practice for mastery.
• Encouragement to succeed in chemistry and other pursuits.
• Reminder to like and subscribe for more educational content.