Questions by LeesaJ55672

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1 answer 78 views

How do the photochemical properties of gold nanoparticles differ from those of silver nanoparticles when exposed to UV radiation in a solution containing a reducing agent?

asked Feb 22 in PhotoChemistry

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1 answer 80 views

What is the critical micelle concentration (CMC) of sodium lauryl sulfate (SLS) in water at room temperature and what factors affect its value?

asked Feb 19 in Surface Chemistry

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1 answer 81 views

How does the chemical structure of a drug affect its pharmacodynamics in the body? Provide examples of different drug classes and their mechanisms of action.

asked Feb 18 in Medicinal Chemistry

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1 answer 105 views

What effect will increasing the pressure have on the equilibrium position of a reaction where the number of moles of gas increases? Provide an explanation based on Le Chatelier's principle.

asked Feb 13 in Chemical equilibrium

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1 answer 73 views

What novel drug development strategies can be used to design effective treatments for viral infections with a focus on broad-spectrum antivirals?

asked Feb 12 in Medicinal Chemistry

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1 answer 67 views

How can the knowledge of enzymatic mechanisms and metabolic pathways be applied to design drugs for treating metabolic disorders such as diabetes or obesity? Specifically, what properties or strategies should be considered in order to develop drugs that can selectively target and modulate key enzymes or metabolic pathways involved in disease pathophysiology?

asked Feb 7 in Medicinal Chemistry

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1 answer 124 views

Calculate the standard enthalpy change for the combustion of methane gas at standard conditions, given the following balanced chemical equation:CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l)Note: Standard conditions refer to a temperature of 25°C and a pressure of 1 atm.

asked Feb 3 in Chemical thermodynamics

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1 answer 172 views

Calculate the standard electrode potential for the reaction Ag+ (aq) + Cu (s) → Ag (s) + Cu2+ (aq) given that the standard electrode potentials for Ag+ (aq) + e- → Ag (s) and Cu2+ (aq) + 2e- → Cu (s) are 0.80 V and 0.34 V respectively.

asked Feb 3 in Chemical thermodynamics

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1 answer 95 views

Calculate the equilibrium constant for a reaction involving a weak oxidizing agent where the concentration of the oxidizing agent is 0.1 M and the concentration of the reduced species is 0.05 M at equilibrium. The balanced chemical equation of the reaction is given as follows:OX + 2 e- ⇌ REDwhere OX is the weak oxidizing agent and RED is the reduced species.

asked Jan 23 in Chemical equilibrium

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1 answer 70 views

Calculate the enthalpy of solution for dissolving 5 grams of NaCl in 100 mL of water if the final temperature of the solution is 25°C and the initial temperature of the water was 20°C. The enthalpy of fusion of NaCl is -3.0 kJ/mol and the specific heat capacity of the solution is 4.18 J/g°C.

asked Jan 23 in ThermoChemistry

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1 answer 78 views

Calculate the enthalpy change when solid sodium hydroxide (NaOH) is dissolved into water, given that the desorption enthalpy of NaOH is 44.51 kJ/mol and the molar heat of solution is -44.51 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 125 views

What is the product of the electrophilic addition reaction between propene and hydrogen bromide in the presence of a peroxide initiator?

asked Jan 21 in Organic Chemistry

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1 answer 76 views

According to the behaviourist approach, how do individuals acquire behaviour?

asked Jan 20 in Psychology

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1 answer 54 views

According to the social desirability bias, what is response bias?

asked Jan 20 in Psychology

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1 answer 89 views

What is the role of psychotherapy in addiction treatment?

asked Jan 20 in Psychology

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1 answer 99 views

What is a key factor in resolving intergroup conflict?

asked Jan 20 in Psychology

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1 answer 95 views

In contrast, how does narrative therapy see the role of language in shaping the individual's experience?

asked Jan 20 in Psychology

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1 answer 213 views

According to decision-making research, what role do emotions play in decision making?

asked Jan 17 in Psychology

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1 answer 40 views

What is the strengths of ACT?

asked Jan 16 in Psychology

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1 answer 89 views

Who developed the concept of operant conditioning?

asked Jan 16 in Psychology

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