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How can we design a system for the production of natural strawberry flavor using chemical engineering principles, while minimizing the use of synthetic components and ensuring that the final product is safe for human consumption?

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

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What is the mass of copper deposited on the cathode when a current of 5 A is passed through a solution of copper (II) sulfate for 2 hours? Given that the atomic mass of copper is 63.5 g/mol and the Faraday constant is 96485 C/mol.

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

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What is the standard potential of a silver electrode in a 0.1 M silver nitrate solution at 25°C, given that the reduction half-reaction is Ag⁺(aq) + e⁻ → Ag(s)?

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

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What is the pH of a 0.1 M solution of HCl (hydrochloric acid)?

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

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What is the standard electrode potential for the reduction of Cu2+ to Cu at a temperature of 25°C? Use the half-reaction equation and the Nernst equation to calculate the potential.

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

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What is the percent yield of carbon dioxide if 25 grams of magnesium carbonate react with excess hydrochloric acid, and 7.5 grams of carbon dioxide are produced? The theoretical yield of carbon dioxide for this reaction is 10 grams.

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

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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?

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

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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?

asked Mar 1 in Medicinal Chemistry 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 standard Gibbs free energy change (in kJ/mol) for the reaction 2H2O (l) -> 2H2 (g) + O2 (g) at 298 K, given that the enthalpy change (ΔH) for the reaction is -483.60 kJ/mol and the entropy change (ΔS) for the reaction is 69.91 J/mol.K?

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

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What is the wavenumber (cm^-1) of the fundamental vibrational mode of carbon dioxide using Fourier transform infrared spectroscopy?

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

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How can we design a treatment system to remove high levels of organic pollutants (such as oils and greases) from industrial wastewater using cost-effective and environmentally sustainable methods?

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

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How can we create more engaging and interactive chemistry demonstrations that appeal to students and increase their interest in the subject?

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

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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?

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

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What is the phase diagram of a binary mixture composed of X and Y at constant temperature and varying pressure? Specifically, determine the critical points and plot the equilibrium curves for solid-liquid and liquid-vapor phases.

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

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What experimental observations can you perform to confidently identify a substance as an ionic, covalent or metallic solid? Give specific examples of solids that can be confidently classified using these observations.

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

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In an electrochemical experiment, the anodic and cathodic Tafel slopes were found to be 100 mV/decade and 120 mV/decade, respectively. Calculate the value of exchange current density for the reaction.

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

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What is the probability that a system of two ideal gas particles in a closed container will have both particles in the same half of the container at a certain temperature? Use the canonical ensemble in statistical mechanics to calculate the probability.

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

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What is the equilibrium constant expression for the following reaction? 2 NO(g) + O2(g) ⇌ 2 NO2(g) Given that the initial concentrations of NO, O2, and NO2 were 0.025 M, 0.015 M, and 0 M, respectively, calculate the equilibrium constant (Kc) at 25°C.

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

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How can we design a drug that targets only gram-negative bacteria, while not affecting gram-positive bacteria, using knowledge of the different structures and properties of these two types of bacteria?

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

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