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What specific chemical modifications can be made to the current chemotherapy drug molecules to increase their efficacy and minimize their side effects in the treatment of cancer patients?

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

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How does the use of synthetic fertilizers in sustainable agriculture impact the quality of soil and water resources in the surrounding environment?

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

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What chemical processes can be used to remove heavy metal ions (such as lead, cadmium, and mercury) from industrial wastewater, and how can these processes be optimized to achieve maximum removal efficiency?

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

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What is the pH of a solution with a hydrogen ion concentration of 3.5 x 10^-5 M, as measured using a pH meter?

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

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What is the enthalpy change for the hydrolysis of 10 grams of sucrose (C12H22O11) in an aqueous solution, assuming complete reaction and a standard state, given that the enthalpy of hydrolysis of sucrose is -564.9 kJ/mol?

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

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What are the factors that affect the strength of chemical bonds and how do these factors contribute to the properties of different molecular structures?

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

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How does the use of biomass as a renewable energy source impact the chemical composition and pH levels of soil in agricultural areas?

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

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What factors affect the stability of oil-in-water emulsions and how can they be manipulated to enhance the stability of the emulsion?

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

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What is the VSEPR geometry of a molecule of carbon dioxide (CO2)?

asked Feb 28 in Chemical bonding by TheScientist (138k points)

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Using the bond dissociation energy values for H-H, Cl-Cl, and H-Cl given in a table, calculate the bond dissociation energy for the HCl molecule.

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

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What is the enthalpy change for the complete combustion of 2 moles of propane (C3H8) in the presence of excess oxygen gas (O2)?

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

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How can the synthesis of zeolites be optimized for increased efficiency and yield, and what impact does varying precursor materials and synthesis conditions have on the resulting physical and chemical properties of the zeolite product?

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

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What is the lattice energy of CaCl2 given that the crystal has a distance of 2.80 Angstroms between the Ca2+ and Cl- ions and the charge on each ion is +2 and -1 respectively?

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

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How does the use of a catalyst affect the rate of a chemical reaction? Can you provide experimental evidence to support your answer?

asked Feb 28 in Chemical kinetics by TheScientist (138k points)

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What is the anodic Tafel slope for the oxidation of iron in a solution with a pH of 3? Given that the corrosion current density is 2.5 x 10^-6 A/cm2 and the overpotential is 0.2 V.

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

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What are the two types of isomers and how can you determine if a molecule exhibits geometric or structural isomerism? Provide an example of each type of isomerism and explain how their properties differ.

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

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What are the possible reasons for a student to encounter difficulties in understanding the periodic table and chemical elements?

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

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What is the enthalpy of precipitation for the reaction between 50 ml of 0.1 M Pb(NO3)2 solution and 75 ml of 0.1 M NaI solution? Given that the standard enthalpy of formation of PbI2 is -360 kJ/mol.

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

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Question: The heat of sublimation of iodine is 62.44 kJ/mol. Calculate the amount of heat required for subliming 20 g of iodine at its melting point of 387 K.

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

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What is the enthalpy change for the combustion of 1 mole of butane (C₄H₁₀) gas (g) under standard conditions?

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

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