Answers by YWYElizbeth9

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Given the electrochemical reaction Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), calculate the standard cell potential at 25°C if the standard reduction potentials are E°(Cu2+/Cu) = 0.34 V and E°(Zn2+/Zn) = -0.76 V.

answered 23 hours ago in ElectroChemistry

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Calculate the enthalpy of polymerization of ethylene from the following data: Ethylene, C2H4(g) polymerizes to form polyethylene, (C2H4)n(s) with ΔHrxn = -44.0 kJ/mol at 298 K. Additionally, it is known that the standard enthalpies of formation of C2H4(g) and polyethylene (C2H4)n(s) are 52.3 kJ/mol and -128.2 kJ/mol, respectively. Assuming the enthalpy of polymerization is independent of temperature, calculate ΔHºp for the reaction.

answered Jan 23 in ThermoChemistry

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Calculate the bond dissociation energy for the Cl-Cl bond in Cl2(g) given that the standard enthalpy change for the reaction Cl2(g) → 2 Cl(g) is +121 kJ/mol and the bond dissociation energy for the Cl-Cl bond in Cl2(g) is known to be 242 kJ/mol.

answered Jan 23 in ThermoChemistry

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Calculate the amount of heat required to melt 50 grams of ice at 0°C, given that the enthalpy of fusion of ice is 6.01 kJ/mol.

answered Jan 23 in ThermoChemistry

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What is the role of socialisation in gender development?

answered Jan 15 in Psychology

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What is the Social Identity Theory?

answered Jan 15 in Psychology

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What is the parental investment theory?

answered Jan 15 in Psychology

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What is the role of anxiety in obsessive-compulsive disorder?

answered Jan 13 in Psychology

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What element is the most common element in the universe?

answered Jan 6 in Science

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What do you call an area covered with water, or possessing very soggy soil, all or part of the year?

answered Jan 6 in Science

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Unburned hydrocarbons can more easily be converted to carbon dioxide and water in the presence of a what?

answered Jan 2 in Science

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The ability to regulate what, which is possessed by mammals, was an advantage as earth’s climate went through sudden and dramatic changes?

answered Dec 31, 2024 in Science

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Predators can replace what tool in agriculture.

answered Dec 31, 2024 in Science

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What do eukaryotic cells have that compartmentalize their functions?

answered Dec 27, 2024 in Science

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