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Calculate the standard Gibbs free energy change (ΔG°) for the following electrochemical reaction:Cu(s) + 2Ag⁺(aq) → Cu²⁺(aq) + 2Ag(s)Given: - Standard reduction potential for the half-reaction: Cu²⁺(aq) + 2e⁻ → Cu(s) E° = +0.34 V Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V
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2 days
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ElectroChemistry
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35
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Calculate the standard enthalpy change for the reaction between hydrochloric acid (HCl) and ammonia (NH3) to produce ammonium chloride (NH4Cl) if the reaction is carried out in a solution of water (H2O), given the following information:HCl(aq) + H2O(l) -> H3O+(aq) + Cl-(aq) ΔH1 = -74.8 kJ/mol NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH-(aq) ΔH2 = -51.8 kJ/mol NH4Cl(s) → NH4+(aq) + Cl-(aq) ΔH3 = 15.2 kJ/mol Ensure that the answer is in kJ/mol.
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2 days
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Chemical thermodynamics
1
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31
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How does changing the size and type of molecule affect the quantum transport properties in nanoscale systems?
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2 days
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Quantum Chemistry
1
answer
51
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Calculate the enthalpy of combustion of ethanol (C2H5OH) if 45.1 g of ethanol is burned completely in excess oxygen, producing 145.5 kJ of heat energy.
asked
Jan 23
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ThermoChemistry
1
answer
51
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Calculate the enthalpy change (∆H) for the combustion reaction of methane gas (CH4) using Hess’s Law, when the enthalpy changes for the following reactions are given: Reaction 1: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l); ∆H = -891 kJ/mol Reaction 2: C (s) + O2 (g) → CO2 (g); ∆H = -393.5 kJ/mol Reaction 3: 2H2 (g) + O2 (g) → 2H2O (l); ∆H = -484 kJ/mol
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Jan 23
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ThermoChemistry
1
answer
50
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According to the social learning theory, what is vicarious reinforcement?
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Jan 20
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Psychology
1
answer
43
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How does social erasure happen?
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Jan 20
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Psychology
1
answer
16
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What is the role of health locus of control in the health belief model?
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Jan 16
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Psychology
1
answer
25
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What is Sexual Script Theory?
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Jan 15
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Psychology
1
answer
37
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Please compare and contrast the trait and biological perspectives on personality.
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Jan 15
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Psychology
1
answer
6
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What is the difference between problem-focused coping and emotion-focused coping?
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Jan 14
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Psychology
1
answer
26
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What tells you how much of the food you should eat to get the nutrients listed on the label?
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Jan 7
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Science
1
answer
18
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What is quantified by measuring the number of decay processes per unit time?
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Jan 6
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Science
1
answer
22
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What helps to propel sponge larvae through the water?
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Jan 6
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Science
1
answer
20
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Vesicular transport includes exocytosis and what?
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Jan 2
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Science
1
answer
23
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The way in which the sun produces light is called what?
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Jan 2
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Science
1
answer
27
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The bending of a wave around the edges of an opening or an obstacle is called this?
asked
Dec 31, 2024
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Science
1
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28
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A crater can usually be found on the top of what kind of volcanoes?
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Dec 30, 2024
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Science
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