Calculate the amount of heat evolved in complete oxidation
Calculate the amount of heat evolved in the complete oxidation of 8.17 g of Al at 25oC and 1 bar pressure. The standard heat of formation of Al2O3 is -1676 kJ/mol. 4 Al(s) + 3 O2(g) 2 Al2O3(s).
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A 345 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 620 mmHg. Calculate the moles of Ar present.
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During photosynthesis, an electron is believed to travel 25 Angstroms within one picoseconds. Calculate the uncertainty in the distance of the electron (in Angstroms) at any point during its 25 Angstrom journey.
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