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Determine the standard enthalpy change for the precipitation reaction of 10.0 g of calcium chloride (CaCl2) with excess sodium carbonate (Na2CO3) to form calcium carbonate (CaCO3) and sodium chloride (NaCl). Given the following standard enthalpies of formation: ΔHf°(CaCl2) = -795.8 kJ/mol, ΔHf°(Na2CO3) = -1130.1 kJ/mol, ΔHf°(CaCO3) = -1206.9 kJ/mol, and ΔHf°(NaCl) = -411.2 kJ/mol.
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6 days
ago
in
Chemical thermodynamics
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29
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Calculate the standard enthalpy change for the formation of carbon dioxide (CO2) from its elements carbon (C) and oxygen (O2) given the following information:- The standard enthalpy change for the combustion of carbon to form carbon dioxide is -394 kJ/mol.- The standard enthalpy change for the combustion of hydrogen gas (H2) to form water (H2O) is -286 kJ/mol.- The standard enthalpy change for the reaction of oxygen gas (O2) with hydrogen gas (H2) to form water (H2O) is -572 kJ/mol.Note: All values are at standard temperature and pressure (298 K and 1 atm).
answered
Feb 3
in
Chemical thermodynamics
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68
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What is the role of the enzyme acyl-CoA synthetase in the metabolism of long-chain fatty acids and how does it differ from the enzyme used for the metabolism of short-chain fatty acids?
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Jan 30
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BioChemistry
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37
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Who proposed social impact theory?
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Jan 15
in
Psychology
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45
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What is the term for behaviors that are closely controlled by genes with little or no environmental influence?
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Jan 7
in
Science
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votes
22
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How is flowing water and blowing wind similar?
answered
Dec 30, 2024
in
Science
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