1.1 It is well-known that te emission of greenhouse gasses such as carbon dioxide presents a very grave threat to the environment. Attempts are ongoing to absorb this gas by several means. One such approach involves the use of vegetation, as plants utilize the gas by means of photosynthesis. One such plant , which has shown great promise, is the "Spekboom" It has been estimated that fully-grown Spekboom can absorb 3.8 tonnes of carbon per hectare of plants per year. If the system is fully functional, South Africa can generate 234.5 x 109 kWh of electricity per year. Assume that 1559 pounds of CO2 is emmited per year per Megawatt-hour of electricity generated in the country. Determine, by means of the use of conversion factors, how many square kilometres of Spekboom could theoretically absorb all of this carbon dioxide ?
1.1 It is well-known that te emission of greenhouse gasses such as carbon dioxide presents a very grave threat to the environment. Attempts are ongoing to absorb this gas by several means. One such approach involves the use of vegetation, as plants utilize the gas by means of photosynthesis. One such plant , which has shown great promise, is the "Spekboom"
It has been estimated that fully-grown Spekboom can absorb 3.8 tonnes of carbon per hectare of plants per year.
If the system is fully functional, South Africa can generate 234.5 x 109 kWh of electricity per year.
Assume that 1559 pounds of CO2 is emmited per year per Megawatt-hour of electricity generated in the country.
Determine, by means of the use of conversion factors, how many square kilometres of Spekboom could theoretically absorb all of this carbon dioxide ?
1.2 Consider the molecule, ClPO2 (The Phosphorus atom is the central atom)
1.2.1 Draw the 3-D Lewis dot structure of the molecule, including all possible resonance structures. Your structures must not show any hyper-valency. Use different symbols for the valence electrons of the different atoms. Do not use dashes to represent all the bonds. Indicate all lone electron pairs.
1.2.2 Calculate the formal charges of all atoms in all the Lewis structures. Write these values on the structures you have drawn in question 1.2.1
1.2.3 Calculate the bond order of the P-O bond(s). Briefly explain the meaning of your answer.
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