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What conditions should be optimized in the process of producing biofuels from algae, to achieve maximum yield and quality of biofuels?

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

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What are the factors affecting the photochemical properties of quantum dots and how can we optimize their performance for various applications in electronics, photonics, and biomedicine?

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

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What is the standard enthalpy change for the reaction that occurs when 50 ml of 0.1 M HCl is mixed with 50 ml of 0.1 M NaOH at 25°C? The equation for the reaction is: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l).

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

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What are the most effective and safe methods for disposing of radioactive waste that minimize impact on the environment and human health?

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

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How does the wavelength of light affect the rate of a photochemical reaction in a particular sample? Is it possible to increase the rate of the reaction by optimizing the wavelength of light used? If so, how?

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

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What is the enthalpy change of ionization for a solution containing 0.1 mol of HCl (aq) if 20 kJ of heat is absorbed during the ionization process?

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

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What is the formal charge of each atom in the CH3COOH molecule? Show your calculation and explain the significance of the formal charges in this molecule.

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

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What is the heat necessary to increase the temperature of 50 grams of water by 10 degrees Celsius, using a calorimeter with a heat capacity of 20 Joules/Kelvin?

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

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How can the use of different catalysts affect the yield and structure of carbon nanotubes synthesized through chemical vapor deposition?

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

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What is the expected yield of benzocaine if 5 grams of p-aminobenzoic acid and 10 mL of ethanol are used in the preparation of benzocaine?

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

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What is the standard enthalpy change for the reaction between 50.0 mL of 0.100 M HCl(aq) and 50.0 mL of 0.100 M NaOH(aq) at 25 °C, given that the temperature change of the mixture was 10.0 °C and the specific heat capacity of the solution is 4.18 J/(g·K)?

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

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What is the heat evolved or absorbed when 50.0 mL of 0.100 M nitric acid (HNO3) is neutralized with 50.0 mL of 0.100 M potassium hydroxide (KOH)? Given that the standard heat of neutralization for the reaction between HNO3 and KOH is -57.1 kJ/mol.

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

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Using molecular orbital theory, calculate the bond order of CO molecule and determine if it is paramagnetic or diamagnetic.

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

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How much mass of silver (Ag) will be deposited onto a cathode during the electrolysis of a silver nitrate (AgNO3) solution using a current of 2.5 A for 20 minutes? The molar mass of silver is 107.868 g/mol and the Faraday constant is 96,485 C/mol.

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

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What is the exchange current density for the oxidation of copper in a 0.1 M copper sulfate solution at 25°C using a platinum electrode?

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

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What is the surface area of a sample of activated charcoal if the BET plot data at a nitrogen pressure of 0.98 atm gives a monolayer capacity of 0.16 mol/g and the weight of the sample used is 0.25 g? (Assume the density of the charcoal to be 2.2 g/cm³)

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

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What are the possible challenges and limitations that can be encountered in the synthesis of zeolites using novel methods and how can they be overcome?

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

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What is the equilibrium constant (Kc) for the reaction between potassium permanganate (KMnO4) and sulfur dioxide (SO2) in aqueous solution, given that sulfur dioxide is a weak reducing agent? Calculate the value of Kc at a temperature of 298 K.

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

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What is the yield of 2,4-dinitrophenol obtained from the reaction of phenol and nitric acid when starting with 10 grams of phenol and 15 mL of 65% nitric acid under specific reaction conditions?

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

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What is the surface area of a sample of activated charcoal determined by gas adsorption using the BET method? Calculate the surface area of the activated charcoal sample given its mass, pore volume, and the adsorption isotherm data.

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

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