Recent activity by AlishaGolder

1 answer 16 views

How does the size and shape of gold nanoparticles affect their photochemical properties, particularly their ability to generate reactive oxygen species for potential applications in photodynamic therapy?

answered 22 hours ago in PhotoChemistry

1 answer 23 views

What is the effect of changing the pH on the equilibrium position of the reaction between acetic acid and sodium acetate? Provide a detailed explanation with relevant equations and calculations.

asked 3 days ago in Chemical equilibrium

1 answer 23 views

What is the step-by-step procedure for preparing p-nitroaniline from aniline and nitric acid, and what are the necessary precautions that should be taken during the reaction to ensure a successful and safe synthesis?

asked 3 days ago in Chemical synthesis

1 answer 18 views

What is the optimal reaction conditions, including temperature and molar ratio, for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine to maximize yield and minimize side reactions?

asked 3 days ago in Chemical synthesis

1 answer 27 views

What is the most efficient and cost-effective chemical treatment system for the removal of heavy metals from industrial wastewater?

answered 3 days ago in Chemical engineering

1 answer 25 views

What is the magnetic moment of [Fe(H2O)6]2+ complex ion?

answered 4 days ago in Inorganic Chemistry

1 answer 15 views

How does the incorporation of different amounts of hydroxyapatite nanoparticles in a zinc oxide-based biomaterial affect its mechanical and biological properties for use in bone tissue engineering?

asked 5 days ago in Materials Chemistry

1 answer 4 views

How does the hormonal regulation and signaling system work in the human body to maintain blood glucose levels? Provide a molecular-level explanation of the role of insulin and glucagon in this process.

answered 5 days ago in BioChemistry

1 answer 23 views

How does the addition of electrolytes affect the stability of a colloidal solution, and at what concentration does coagulation occur?

asked Feb 17 in Surface Chemistry

1 answer 34 views

How does the activation energy of a chemical reaction affect its rate and mechanism, and how can quantum chemistry help in predicting and understanding these factors?

asked Feb 17 in Quantum Chemistry

1 answer 42 views

How do the body's amino acid biosynthesis pathways differ in individuals who consume a vegetarian or low-protein diet compared to those who consume a high-protein diet, and how can these differences impact overall health and metabolism?

asked Feb 13 in BioChemistry

1 answer 39 views

What is the maximum work that can be done by a chemical reaction that occurs irreversibly at a constant temperature and pressure?

answered Feb 13 in Physical Chemistry

1 answer 42 views

Identify the possible types of isomerism in a molecule with the chemical formula C4H10O and explain the differences between each type of isomerism.

asked Feb 13 in Chemical bonding

1 answer 35 views

What hybrid orbitals would you expect for the central atom in a molecule of CH3OH?

asked Feb 13 in Chemical bonding

1 answer 50 views

How can the self-assembly of supramolecular structures be manipulated for the development of new and more efficient drug delivery systems?

asked Feb 10 in Physical Chemistry

1 answer 40 views

How can the mechanical properties of a polymer be improved by selecting appropriate polymerization conditions?

answered Feb 10 in Physical Chemistry

1 answer 41 views

How can the lack of emphasis on safety protocols in chemistry labs affect the physical and mental well-being of students, and what can be done to address and prevent any potential hazards?

answered Feb 7 in Chemical education

1 answer 33 views

How can chemistry students without access to a laboratory and equipment still perform experiments and gain relevant hands-on experience in their studies?

answered Feb 5 in Chemical education

1 answer 36 views

Calculate the standard free energy change for the reaction of HCl with MnO2 to form MnCl2 and H2O at a temperature of 298 K, given that the standard reduction potentials are E°(MnO2/MnCl2)=-0.13 V and E°(H2O/HCl)=1.23 V.

answered Feb 3 in Chemical thermodynamics

1 answer 39 views

Calculate the standard enthalpy change for the precipitation reaction of copper(II) sulfate and sodium hydroxide, given the following balanced chemical equation:CuSO4(aq) + 2NaOH(aq) → Cu(OH)2(s) + Na2SO4(aq)Assume the reaction takes place under standard conditions and the necessary species are present in their standard states. Round your answer to two decimal places.

answered Feb 3 in Chemical thermodynamics

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