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Section 14.4

Section 14.4. Gas Stoichiometry. Objectives. Determine volume ratios for gaseous reactants and products by using coefficients from a chemical equation Calculate amounts of gaseous reactants and products in a chemical reaction using the gas laws. Finding Volume.

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Section 14.4

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  1. Section 14.4 Gas Stoichiometry

  2. Objectives • Determine volume ratios for gaseous reactants and products by using coefficients from a chemical equation • Calculate amounts of gaseous reactants and products in a chemical reaction using the gas laws

  3. Finding Volume • Start with a balanced equation, always!! • Ex: CH4 (g) + 2O2 (g)  CO2 (g) + 2H2O (g) • 2L of O2 reacts completely with 1 L of CH4, producing 1L of CO2 and 2L of H2O

  4. Practice Problems • Page 441 • 56-57

  5. Calculations with Volume and Mass • Must know: • Balanced equation • At least 1 mass or volume for a reactant/product • Conditions under which gas volume have been measured • Remember: • Masses given must be converted to moles first! • Temp must be in Kelvin

  6. Practice Problems • Page 443 • 61-64

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