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What is the theoretical yield of p-nitroaniline when 5 grams of aniline is reacted with 10 grams of nitric acid in the preparation of p-nitroaniline?

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

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What is the heat of neutralization for the reaction between 50 mL of 1.0 M hydrochloric acid (HCl) and 50 mL of 1.0 M sodium hydroxide (NaOH) at a room temperature of 25°C? The enthalpy of neutralization of HCl and NaOH is -57.1 kJ/mol.

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

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How can we design a system that produces surfactants with high purity levels while minimizing waste generation and energy consumption?

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

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How can we create a smart material using polymers that can detect toxins in water and turn a visibly different color to indicate contamination?

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

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How can we design a system for the production of lubricants that meets the required specifications while minimizing environmental impact?

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

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What is the standard enthalpy change for the reaction between copper sulfate pentahydrate and potassium hydroxide to form copper hydroxide and potassium sulfate, assuming all substances are in their standard state and the reaction occurs at 25°C?

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

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What is the reaction quotient (Q) for the following reaction at 298K, if the partial pressures of reactants and products are as follows:2NO2(g) ⇌ 2NO(g) + O2(g)[NO2] = 0.5 atm, [NO] = 0.3 atm, and [O2] = 0.7 atm.

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

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How does the concentration and acidity of rainwater in your local area compare to the average levels reported in areas affected by acid rain, and what are the potential impacts on the environment?

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

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How can we design a practical experiment to demonstrate the real-life applications of acid-base titration in chemical industries?

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

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What is the standard enthalpy change for the reaction 2CO(g) + O2(g) → 2CO2(g) at standard conditions, given that the standard enthalpy of formation for CO, O2, and CO2 are -110.5 kJ/mol,-393.5 kJ/mol, and -393.5 kJ/mol, respectively?

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

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What is the Gibbs free energy change at 298 K for the reaction 2Fe2+(aq) + Cl2(g) --> 2Fe3+(aq) + 2Cl-(aq) if the standard electrode potentials for the half-reactions are E°(Fe3+(aq) + e- --> Fe2+(aq)) = -0.77 V and E°(Cl2(g) + 2e- --> 2Cl-(aq)) = 1.36 V?

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

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What is the power output (in Watts) of an electrochemical cell at standard conditions, given that the cell potential is 1.5V and the total resistance of the circuit is 10 ohms?

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

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What is the standard enthalpy change for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) in aqueous solutions when 25 mL of 2.0M HCl is mixed with 50 mL of 1.0M NaOH at 25⁰C and atmospheric pressure?

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

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What is the magnetic moment of a complex formed between iron(III) ion and ethylenediamine ligand (en) with a coordination number of 6?

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

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What is the standard enthalpy change for the reaction between 1 mol of ethanoic acid and 1 mol of sodium hydroxide in aqueous solution, given that the reaction produces 1 mol of sodium ethanoate and 1 mol of water?

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

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What is the pH of a solution with a concentration of 0.1 M hydrochloric acid?

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

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What is the theoretical basis for predicting the chemical reactivity and selectivity of a given molecule using quantum chemical calculations?

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

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What is the yield of 2,4-dichloronitrobenzene obtained from the reaction between nitrobenzene and chlorine gas when starting with 10 grams of nitrobenzene and excess chlorine gas, given that the reaction has a theoretical yield of 95%?

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

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What is the standard Gibbs free energy change at 298 K for the reaction A + 2B → 2C if the standard Gibbs free energy of formation for A, B, and C are 100 kJ/mol, -50 kJ/mol, and -120 kJ/mol, respectively?

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

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What is the standard enthalpy change for the neutralization of 25.0 mL of 0.100 M hydrochloric acid with 25.0 mL of 0.100 M sodium hydroxide, given that the specific heat capacity of the solution is 4.18 J/g°C and the temperature change is 5.0°C?

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

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