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Please name the two most common methods to prepare primary alcohols from aldehydes and describe the reaction mechanism for one of them.

asked Feb 28 in Organic Chemistry by TheScientist (138k points)

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What is the pH of a solution with a concentration of 0.005 M hydrochloric acid (HCl)?

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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What are the factors that affect the stability of coordination compounds and how can these be manipulated to design efficient catalysts for chemical reactions involving transition metals?

asked Mar 1 in Coordination Chemistry by TheScientist (138k points)

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How does changing the pH level of a solution affect the rate of a chemical reaction between (specific reactants) and (specific product)?

asked Mar 1 in Chemical kinetics by TheScientist (138k points)

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What are the specific molecular interactions between a particular drug and its target enzyme/protein, and how do these interactions lead to the desired therapeutic effect?

asked Mar 1 in Medicinal Chemistry by TheScientist (138k points)

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What is the standard enthalpy change for the fusion of 50 grams of ice at 0°C to liquid water at 25°C, assuming constant pressure and no heat loss to the surroundings?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the standard enthalpy change for the fusion of 10 grams of solid sodium (Na) at its melting point, given that the molar heat of fusion of sodium is 2.60 kJ/mol?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What is the enthalpy of solution of 5 grams of ammonium nitrate in 100 grams of water at room temperature? Given the molar heat of solution for ammonium nitrate is -25.7 kJ/mol.

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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How does the temperature affect the nematic ordering of a liquid crystal sample simulated through Monte Carlo simulations?

asked Feb 28 in Computational Chemistry by TheScientist (138k points)

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What is the enthalpy of polymerization of polystyrene if 25 grams of styrene monomer undergo polymerization at constant pressure and release 100 kJ of heat energy?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the amount of heat released when 2.5 moles of propane (C3H8) is completely burned in oxygen gas (O2) according to the balanced equation: C3H8 + 5O2 → 3CO2 + 4H2O given that the standard enthalpy of combustion of propane is -2220 kJ/mol?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the enthalpy of formation of ammonia gas (NH3) at 298 K and 1 atm pressure using the given bond energies: N≡N = 418 kJ/mol, H-H = 436 kJ/mol, and N-H = 391 kJ/mol?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the formal charge on the central atom (in brackets) in SO3²⁻? Calculate the formal charge on sulfur (S) and explain whether the molecule is overall neutral or has a charge.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the conductivity of a 0.1 M solution of sodium chloride at 25°C?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What will be the effect on the equilibrium position of a redox reaction if the concentration of the reactants is doubled while the concentration of products remains unchanged? Provide a detailed explanation with appropriate calculations.

asked Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the optimum amount of hexamethylenediamine to be used in the synthesis of nylon-6,6 from adipic acid to get maximum yield?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

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What is the formal charge of the nitrogen atom in the molecule HCN?

asked Mar 1 in Chemical bonding by TheScientist (138k points)

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What is the specific heat capacity (in J/g°C) of copper if 100 grams of the metal absorbs 1500 J of heat and its temperature increases by 20°C?

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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What are the different methods for synthesizing carboxylic acids and how do they differ in terms of efficiency, yield and cost?

asked Mar 1 in Organic Chemistry by TheScientist (138k points)

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What is the molar mass of sodium chloride (NaCl)? Show step-by-step calculations in determining the answer.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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