Questions by MatthewStore

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1 answer 23 views

What is the most efficient and eco-friendly method for synthesizing metal nanoparticles with a narrow size distribution and high stability, and how does the synthesis route affect the physical and chemical properties of the resulting nanoparticles?

asked Feb 21 in Materials Chemistry

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1 answer 22 views

How does the coordination environment around the central metallic ion affect the electronic and optical properties of metalloporphyrins and metallophthalocyanines?

asked Feb 19 in Coordination Chemistry

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1 answer 55 views

What is the role of metal ions in the catalytic activity of enzymes? Provide examples of metalloproteins, their metal centers, and their respective chemical reactions.

asked Feb 13 in Coordination Chemistry

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1 answer 10.6k views

What are the hybrid orbitals present in methane (CH4)?

asked Feb 13 in Chemical bonding

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1 answer 28 views

How can we design a drug that targets the mutation responsible for sickle cell anemia, while avoiding harm to healthy cells and tissues in the body?

asked Feb 12 in Medicinal Chemistry

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1 answer 37 views

How can the photochemical properties of transition metal complexes be modified by changing the ligands coordinated to the metal center? Compare and contrast the photochemistry of two different transition metal complexes with different ligands and explain the observed differences in their reactivity patterns.

asked Feb 10 in PhotoChemistry

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1 answer 48 views

How can the optical properties of glasses be improved for use in advanced applications such as fiber optic communication, laser technology, and medical equipment?

asked Feb 10 in Materials Chemistry

+1 vote

1 answer 60 views

How can the chemical properties of liquid crystals be optimized to enhance their performance in display technology, particularly in terms of brightness, contrast, and response time?

asked Feb 6 in Materials Chemistry

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1 answer 75 views

Given the reaction:2HgO(s) → 2Hg(l) + O2(g)Calculate the standard enthalpy change ($\Delta H$) and standard entropy change ($\Delta S$) at 298 K, if the standard enthalpy of formation of HgO(s), Hg(l), and O2(g) are -90.8 kJ/mol, 0 kJ/mol, and 0 kJ/mol, respectively.

asked Feb 4 in Inorganic Chemistry

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1 answer 93 views

Determine the standard enthalpy change for the reaction: Fe2O3 (s) + 3CO (g) → 2Fe (s) + 3CO2 (g)given the following values of standard enthalpy of formation:ΔHf° [Fe2O3 (s)] = -824 kJ/mol ΔHf° [CO2 (g)] = -393.5 kJ/mol ΔHf° [CO (g)] = -110.5 kJ/mol ΔHf° [Fe (s)] = 0 kJ/mol

asked Feb 4 in Chemical thermodynamics

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1 answer 82 views

How does changing the structure of a biomaterial affect its mechanical properties and ability to support cell growth for use in tissue engineering applications?

asked Feb 3 in Materials Chemistry

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1 answer 54 views

How does changing the concentration of reactants or products affect the equilibrium position of a chemical reaction? Provide a specific example to support your answer.

asked Feb 3 in Chemical equilibrium

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1 answer 111 views

How does the drug Aspirin exert its anti-inflammatory effect at a molecular level?

asked Jan 31 in Medicinal Chemistry

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1 answer 59 views

Calculate the enthalpy change for the hydrolysis of 0.1 moles of sucrose in water given the following information: - The enthalpy change of the reaction is -564 kJ/mol.- The molar mass of sucrose is 342.3 g/mol.- The reaction is exothermic.

asked Jan 23 in ThermoChemistry

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1 answer 105 views

A chemistry student is provided with a mixture of two chemicals, A and B, but the quantity of each chemical is unknown. The student uses mass balance calculations to determine the mass of each component in the mixture. Chemical A has a molecular weight of 100 g/mol, while chemical B has a molecular weight of 120 g/mol. If the mixture contains 10% more of chemical A by mass than chemical B, what is the mass of each component in the mixture?

asked Jan 22 in Analytical Chemistry

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1 answer 70 views

When can self-actualisation be achieved, according to Maslow?

asked Jan 17 in Psychology

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1 answer 31 views

Please compare inductive and deductive content analysis in qualitative research.

asked Jan 16 in Psychology

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1 answer 79 views

What nucleic acid stores the genetic information?

asked Jan 7 in Science

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1 answer 70 views

What areas of the planet are most birds native to?

asked Jan 6 in Science

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1 answer 106 views

Nuclear power plants produce electricity through what?

asked Dec 31, 2024 in Science

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