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Density of a Gas at STP Lesson # 4

Density of a Gas at STP Lesson # 4. 1. Calculate the density of N 2 at STP. Calculate Density = grams litre. Assume that you have 1 mole of N 2. 1. Calculate the density of N 2 at STP. Calculate Density = grams litre 28.0 g = . Assume that you have 1 mole of N 2.

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Density of a Gas at STP Lesson # 4

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  1. Density of a Gas at STP Lesson # 4

  2. 1. Calculate the density of N2 at STP. Calculate Density = grams litre Assume that you have 1 mole of N2

  3. 1. Calculate the density of N2 at STP. Calculate Density = grams litre 28.0 g = Assume that you have 1 mole of N2

  4. 1. Calculate the density of N2 at STP. Calculate Density = grams litre 28.0 g = 22.4 L Assume that you have 1 mole of N2

  5. 1. Calculate the density of N2 at STP. Calculate Density = grams litre 28.0 g = 1.25 g/L 22.4 L Assume that you have 1 mole of N2

  6. 2. Calculate the density of CO2 at STP. Density = grams litre Assume that you have 1 mole of CO2

  7. 2. Calculate the density of CO2 at STP. Calculate Density = grams litre 44.0 g = Assume that you have 1 mole of CO2

  8. 2. Calculate the density of CO2 at STP. Calculate Density = grams litre 44.0 g = 22.4 L Assume that you have 1 mole of CO2

  9. 2. Calculate the density of CO2 at STP. Calculate Density = grams litre 44.0 g = 1.96 g/L 22.4 L Assume that you have 1 mole of CO2

  10. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 1 2

  11. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 12.5 g HgO x 1mole 216.6g

  12. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 12.5 g HgO x 1mole x 1 mole O2 216.6g2 mole HgO

  13. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 12.5 g HgO x 1mole x 1 mole O2 x 22.4 L 216.6g2 mole HgO 1 mole

  14. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 12.5 g HgO x 1mole x 1 mole O2 x 22.4 L x 0.450 216.6g2 mole HgO 1 mole

  15. 3. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO if the yield is 45.0 %. 2HgO → 2Hg + O2 12.5 g? L 12.5 g HgO x 1mole x 1 mole O2 x 22.4 L x 0.450 = 0.291 L 216.6g2 mole HgO 1 mole

  16. 4. How many litres of CO2 are produced by the reaction of 100. g of Fe2O3, if the actual yield was 19.0 L @ STP, calculate the percentage yield. 19.0 L 2Fe2O3 + 3C  4Fe + 3CO2 100. g ? L 3 2

  17. 4. How many litres of CO2 are produced by the reaction of 100. g of Fe2O3, if the actual yield was 19.0 L @ STP, calculate the percentage yield. 19.0 L 2Fe2O3 + 3C  4Fe + 3CO2 100. g ? L 100. g Fe2O3 x 1 mole x 3 mole CO2 x 22.4 L = 21.05 L 159.6 g 2 mole Fe2O3 1 mole Percentage yield = 19.0 L x 100% = 90.3 % 21.05 L 3 2

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