Recent activity by Barney65731

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How does the size and shape of a nanomaterial affect its electronic and optical properties, and how can these properties be calculated using quantum chemistry methods?

answered Feb 24 in Quantum Chemistry

1 answer 32 views

What is the reaction quotient (Qc) of the chemical reaction 2H2 + O2 → 2H2O at a temperature of 25°C given that the initial concentration of H2 is 0.5M, initial concentration of O2 is 0.2M, and initial concentration of H2O is 0M?

asked Feb 22 in Chemical thermodynamics

1 answer 32 views

What is the effect of solvent polarity on the rate of reaction between sodium hydroxide and methyl iodide?

answered Feb 22 in Chemical kinetics

1 answer 35 views

What is the effect of varying substrate concentration on the initial rate of an enzyme-catalyzed reaction and how does the presence of an inhibitor affect the reaction rate at different substrate concentrations?

answered Feb 20 in BioChemistry

1 answer 40 views

How does the concentration of adsorbate affect the efficiency of activated carbon in removing pollutants from water?

asked Feb 18 in Surface Chemistry

1 answer 24 views

What is the bond order of nitrogen molecule, N2?

asked Feb 18 in Chemical bonding

1 answer 32 views

What is the equilibrium constant for the reaction between nitrogen gas and hydrogen gas to form ammonia gas at 500°C given that the equilibrium concentrations are [N2] = 0.25 M, [H2] = 0.20 M and [NH3] = 0.10 M?

asked Feb 17 in Chemical equilibrium

1 answer 36 views

What is the mechanism by which sunscreen agents protect human skin against the harmful effects of ultraviolet radiation, and how can their photochemical properties be optimized to enhance their effectiveness?

asked Feb 14 in PhotoChemistry

1 answer 111 views

How does the change in concentration of the reactants in a second-order reaction affect the reaction rate?

asked Feb 13 in Chemical kinetics

1 answer 60 views

What type of intermolecular forces are present in a sample of water?

answered Feb 13 in Chemical bonding

1 answer 50 views

How can molecular docking studies be used to design new drugs targeting COVID-19 proteins, and what key characteristics must the drug molecules possess to provide high binding affinity and specificity in the binding site of the target proteins?

answered Feb 5 in Computational Chemistry

1 answer 45 views

How can inadequate emphasis on chemical reactions and equations affect a student's understanding of chemistry concepts, and what steps can be taken to improve this emphasis in the classroom?

asked Feb 5 in Chemical education

1 answer 84 views

Design a drug that could potentially treat Type 2 Diabetes by targeting an enzyme or transport protein involved in glucose metabolism. Consider the pharmacokinetics and pharmacodynamics of the drug and include a detailed mechanism of action.

answered Feb 4 in Medicinal Chemistry

1 answer 109 views

What is the structure and preparation of 1-methoxy-2-propanol? Illustrate the reaction involved and explain how the solvent's properties change with the addition of the ether functional group.

asked Jan 30 in Organic Chemistry

1 answer 104 views

What are some effective study strategies that can help a chemistry student better understand complex chemical concepts, such as spectroscopy or thermodynamics?

asked Jan 30 in Chemical education

1 answer 75 views

A compound containing only potassium and chlorine has a mass of 74.55 grams. When this compound was analyzed, it was found to have 37.43 grams of potassium and 37.12 grams of chlorine. Determine the empirical and molecular formulas of this compound.

answered Jan 22 in Inorganic Chemistry

1 answer 98 views

A chemistry student wants to find out the effect on the equilibrium position when the volume of a reaction mixture is changed. They have an equilibrium mixture of hydrogen and iodine gases forming hydrogen iodide gas according to the equation:$$H_2 (g) + I_2 (g) \leftrightharpoons 2HI (g)$$At 298 K, the equilibrium constant for this reaction is 54.3. Initially, the reaction mixture contains 0.5 moles of hydrogen gas, 0.5 moles of iodine gas, and 0 moles of hydrogen iodide gas in a container of volume 2L. If the volume is reduced to 1L while maintaining the temperature at 298 K, what wi

asked Jan 22 in Chemical equilibrium

1 answer 95 views

How do the coordination chemistry principles of chelation therapy contribute to the removal of toxic metal ions from the human body?

asked Jan 22 in Coordination Chemistry

1 answer 79 views

Why is the social learning theory of aggression important to psychology?

asked Jan 20 in Psychology

1 answer 46 views

According to the opponent-colour theory, what is the biological explanation for colour blindness?

asked Jan 17 in Psychology

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