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What is the theoretical yield of AgCl produced when 50 mL of 0.1 M NaCl solution is mixed with 50 mL of 0.1 M AgNO3 solution?
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Mar 1
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Chemical reactions
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138k
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What is the minimum amount of heat energy required to vaporize 50 grams of water at its boiling point, given the enthalpy of vaporization of water to be 40.7 kJ/mol?
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Mar 1
in
ThermoChemistry
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What is the minimum amount of energy required to break H2O molecules in a system consisting of 100 water molecules at a temperature of 298 K? Use statistical mechanics and thermodynamic ensembles to solve the problem.
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Mar 1
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Physical Chemistry
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What is the standard enthalpy change for the reaction of 2-methylpropan-2-ol (C4H10O) with oxygen gas (O2) to form carbon dioxide (CO2) and water (H2O) at standard conditions?
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Mar 1
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Chemical thermodynamics
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What is the maximum work that can be obtained in a non-equilibrium process with a system at a given temperature and pressure, if the entropy change of the system is known? Calculate the answer assuming ideal gas behavior.
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Mar 1
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Physical Chemistry
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How can we design a polymer-based drug delivery system with optimal drug release properties for the treatment of a specific disease or condition?
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Mar 1
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Polymer Chemistry
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What is the calculated magnetic moment of iron(III) oxide (Fe2O3) at room temperature using an experimental molar susceptibility of 5.48 × 10^-6 cm^3/mol?
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Mar 1
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Inorganic Chemistry
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How can you design a photochemical experiment to distinguish between the enantiomers of a chiral compound and determine their specific photochemical properties?
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Mar 1
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PhotoChemistry
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How can we design a novel medication for autoimmune diseases that specifically targets the dysfunctional immune cells and/or modulates the immune response without causing significant adverse effects on other healthy cells and bodily functions?
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Mar 1
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Medicinal Chemistry
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What is the standard molar entropy change (∆S°) for the reaction: 2HBr(g) + Cl2(g) -> 2HCl(g) + Br2(g) if the standard molar enthalpy change (∆H°) is -107.6 kJ/mol?
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Mar 1
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Inorganic Chemistry
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What is the standard free energy change of the following redox reaction at 298 K and 1 bar?2Fe2+(aq) + H2O2(aq) + 2H+(aq) → 2Fe3+(aq) + 2H2O(l)Given the following standard reduction potentials:Fe3+/Fe2+ = +0.771 VH2O2/O2 = +0.695 V
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Mar 1
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Chemical thermodynamics
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How can we design a drug that selectively targets the COX-2 enzyme for treating inflammation, while avoiding harmful inhibition of the COX-1 enzyme in the body?
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Mar 1
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Medicinal Chemistry
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TheScientist
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The problem is:What is the standard enthalpy change for the dissolution of 5.00 grams of solid magnesium chloride (MgCl2) in 250.0 mL of water at 25 ℃? Given the molar enthalpy of hydration of MgCl2 is -641 kJ/mol.
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Mar 1
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Chemical thermodynamics
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What is the percentage yield of aspirin obtained from the synthesis of aspirin using 5 grams of salicylic acid and excess acetic anhydride?
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Mar 1
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Chemical synthesis
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What is the percentage change in the ionization constant of a weak acid if its temperature is increased from 25°C to 35°C? (Assume that the value of the Van't Hoff factor for the reaction is constant and equal to 1.)
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Mar 1
in
Chemical equilibrium
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138k
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Sure, here's a problem:Calculate the standard enthalpy change for the combustion of methane gas (CH4) using the following information:Formation of CO2: -393.5 kJ/molFormation of H2O: -285.8 kJ/molFormation of CH4: -74.8 kJ/mol
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Mar 1
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Chemical thermodynamics
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What is the standard enthalpy change (ΔH°) for the reaction of 1 mole of liquid ethanol (C2H5OH) and 1 mole of liquid oxygen (O2) to produce 2 moles of gaseous carbon dioxide (CO2) and 3 moles of liquid water (H2O)?
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Mar 1
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Chemical thermodynamics
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138k
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88
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What is the energy difference between the ground state and the first excited state of a hydrogen atom using quantum chemical calculations?
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Mar 1
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Computational Chemistry
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138k
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What is the molar mass of sodium sulfate decahydrate (Na2SO4.10H2O)?
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Mar 1
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Inorganic Chemistry
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What is the rate of reaction for the combustion of methane in which 4.7 grams of methane reacts in 3.5 seconds to produce 11.2 grams of water vapor and carbon dioxide gas?
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Mar 1
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Chemical reactions
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TheScientist
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138k
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