The enthalpy of combustion of propane is -2202.0 kJ/mol.
The enthalpy of combustion is released when one mole of compound is burned in the presence of excess oxygen. The bonds between carbon and hydrogen in the compound are broken and bonds between carbon and oxygen are formed as well as bonds between hydrogen and oxygen are formed.
Answer: formic acid (HCOOH) contains the greatest mass of oxygen
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Answer:
Partition coefficients are:
Chloroform-Water: 18.1
Diethyl ether-Water: 3.97
Benzene-Water: 1.71
You would choose chloroform to extract the compound
Explanation:
Partition coeffcient is defined as the ratio between solubility in g/mL of an organic compound and concentration of the solubility in an aqueous solution.
Solubility of the compound in the solvents is:
Water: 1g / 147.0mL = 6.80x10⁻³g/mL
Chloroform: 1g / 8.10mL = 0.123g/mL
Diethyl ether: 1g / 37.0mL = 0.0270g/mL
Benzene: 1g / 86.0mL = 0.0116g/mL
<h3>Partition coefficients are:</h3><h3>Chloroform-Water: 18.1</h3><h3>Diethyl ether-Water: 3.97</h3><h3>Benzene-Water: 1.71</h3><h3 />
The higher partition coefficient, the best extraction because the compound will have more affinity with this solvent in which the compound has the best solubillity.
Chloroform has the higher partition coefficient because has the higher solubility. That means chloroform is the solvent you would choose to extract the compound from an aqueous solution
