Questions by Kenneth76952

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1 answer 6 views

How does the presence of a metal nanoparticle affect the surface-enhanced Raman spectroscopy (SERS) signal of a molecule?

asked 3 days ago in Surface Chemistry

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1 answer 5 views

How does the coordination of metal ions with specific amino acid residues affect the activity and stability of metalloproteins/enzymes?

asked 6 days ago in Coordination Chemistry

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1 answer 26 views

What is the effect of temperature on the adsorption of gases on solid surfaces? Compare and contrast the behavior of physisorption and chemisorption with respect to temperature dependence.

asked Feb 17 in Surface Chemistry

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1 answer 7 views

How can we use supramolecular chemistry and self-assembly to design a new class of drug delivery systems with improved efficacy and specificity?

asked Feb 14 in Physical Chemistry

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1 answer 8 views

How can we optimize the production of a specific flavor using chemical engineering principles and design a system that is both efficient and cost-effective?

asked Feb 14 in Chemical engineering

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1 answer 47 views

What is the effect of increasing the concentration of reactants on the rate of a chemical reaction when the concentration of one product is kept constant, and the concentration of another product is gradually increased?

asked Feb 13 in Chemical kinetics

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1 answer 35 views

How can limited opportunities for hands-on experimentation in chemistry affect a student's overall understanding and appreciation of the subject?

asked Feb 5 in Chemical education

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1 answer 32 views

How can chemistry students overcome the challenge of limited access to laboratory equipment and facilities to conduct experiments and learn conceptual topics effectively?

asked Feb 5 in Chemical education

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1 answer 43 views

Calculate the standard enthalpy change for the phase transition reaction of solid water (ice) at -10°C into liquid water at 25°C if the enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of ice and liquid water are 2.09 J/g°C and 4.18 J/g°C, respectively.

asked Feb 3 in Chemical thermodynamics

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1 answer 54 views

Calculate the standard enthalpy change for the combustion of methane gas using the following reaction: CH4(g) + 2O2(g) → CO2(g) + 2H2O(g). Given the standard enthalpy of formation values for methane, carbon dioxide, and water, calculate the heat released or absorbed during this reaction. Express your answer in kJ/mol.

asked Feb 3 in Chemical thermodynamics

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1 answer 71 views

What is the bond order of the nitrogen molecule (N2) according to the molecular orbital theory?

asked Jan 30 in Chemical bonding

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1 answer 91 views

What is the composition of proteins in the given biological sample using electrophoresis technique?

asked Jan 30 in Analytical Chemistry

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1 answer 63 views

Calculate the enthalpy change for the reaction: 2H2(g) + O2(g) --> 2H2O(g) given the following enthalpy changes: H2(g) + 1/2O2(g) --> H2O(g) ΔH1 = -286 kJ/molH2(g) + 1/2Cl2(g) --> HCl(g) ΔH2 = -92 kJ/mol Cl2(g) --> 2Cl(g) ΔH3 = +242 kJ/molHCl(g) + 1/2O2(g) --> H2O(g) + Cl2(g) ΔH4 = -184 kJ/mol

asked Jan 23 in Chemical reactions

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1 answer 59 views

Calculate the enthalpy change for the polymerization of polyethylene using the following information: ΔHf° of ethylene (-20.4 kJ/mol) and polyethylene (-1024 kJ/mol); the reaction equation: nC2H4 (g) → [-CH2-CH2-]n (s)

asked Jan 23 in ThermoChemistry

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1 answer 81 views

A chemistry student wants to determine the surface area of a porous material using gas adsorption. The student has access to a BET specific surface area analyzer and pure nitrogen gas. What is the surface area of the porous material if the adsorption isotherm shows a monolayer formation at the partial pressure of nitrogen adsorption around 0.1?

asked Jan 22 in Surface Chemistry

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1 answer 34 views

When was the Thematic Apperception Test TAT developed?

asked Jan 20 in Psychology

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1 answer 39 views

How does the attribution theory explain how people perceive events?

asked Jan 20 in Psychology

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1 answer 42 views

Where did the anxiety sensitivity theory come from?

asked Jan 20 in Psychology

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1 answer 61 views

What are the strengths of interpretivism?

asked Jan 16 in Psychology

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0 answers 33 views

Please evaluate the criticisms of Gilligan's moral development theory?

asked Jan 16 in Psychology

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