Recent activity by MargieJobson

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How does the size and shape of metal ions affect the structure and stability of metal-organic frameworks?

asked 22 hours ago in Computational Chemistry

1 answer 26 views

What is the effect of pH on the stability of colloidal solutions? Provide experimental evidence to support your answer.

asked 3 days ago in Physical Chemistry

1 answer 23 views

How does the inhibition of the enzyme pyruvate kinase affect the metabolic pathway of glycolysis and what are the regulatory mechanisms involved?

answered 5 days ago in BioChemistry

1 answer 23 views

What is the coordination number of the metal ion in the active site of the enzyme carbonic anhydrase, and how does it affect the enzyme's catalytic activity?

answered 6 days ago in Coordination Chemistry

1 answer 26 views

How does the chemical composition of crude oil impact the severity of environmental damage caused by an oil spill, and what chemical treatments can be used to mitigate this damage?

answered 6 days ago in Environmental Chemistry

1 answer 29 views

How does the chemical composition of crude oil affect its impact on the environment after a spill?

asked 6 days ago in Environmental Chemistry

1 answer 30 views

How does the nitrogen and phosphorus pollution in a water body affect the growth of harmful algal blooms and what is the mechanism behind it?

answered Feb 14 in Environmental Chemistry

1 answer 8 views

What is the mechanism behind hormone regulation and signaling of insulin in the human body? Specifically, how does insulin bind to its receptor and initiate its signaling pathway to regulate glucose metabolism?

asked Feb 13 in BioChemistry

1 answer 7 views

How does the hormone insulin regulate glucose levels in the bloodstream? Provide a brief mechanism of insulin signaling and the biochemical processes involved in glucose uptake and storage in cells.

asked Feb 13 in BioChemistry

1 answer 51 views

What is the oxidation state of nitrogen in the compound NH4NO3?

asked Feb 13 in Inorganic Chemistry

1 answer 35 views

What type of bonding is present in solid sodium chloride (NaCl)? Is it ionic, covalent, or metallic? Provide a detailed explanation supporting your answer.

asked Feb 13 in Chemical bonding

1 answer 45 views

How does genetic variation influence drug response and efficacy in patients with cancer? Specifically, investigate the relationship between genetic markers and the response to chemotherapy drugs used in cancer treatment.

asked Feb 13 in Medicinal Chemistry

1 answer 2 views

How can we design a new drug molecule for treating eczema that can penetrate the skin barrier and target the underlying inflammatory response in the skin cells?

answered Feb 12 in Medicinal Chemistry

1 answer 9 views

What is the difference between coordination polymers and metal-organic frameworks, and how do their properties differ? Provide examples of each type of compound and explain their potential applications in different fields of chemistry.

asked Feb 12 in Coordination Chemistry

1 answer 33 views

What is the effect of the chirality of enantiomers on their photochemical reactivity?

asked Feb 12 in PhotoChemistry

1 answer 30 views

How can the environmental impact of industrial waste disposal be minimized using chemical processes and technologies?

answered Feb 7 in Environmental Chemistry

1 answer 29 views

How can the efficiency of the system for the production of hydrogen fuel be improved to reduce the overall cost of hydrogen fuel production?

answered Feb 7 in Chemical engineering

1 answer 46 views

Consider the coordination chemistry of metalloproteins and metalloenzymes. How does the binding of a metal ion to a protein or enzyme affect its structure and function? Provide specific examples of metalloproteins and metalloenzymes and describe the specific roles that the bound metal ions play in their function.

answered Feb 3 in Coordination Chemistry

1 answer 50 views

Certainly! Here's a precise problem for the student to solve:Calculate the standard enthalpy change ($\Delta H^\circ$) for the dissolution reaction of 5.00 g of lithium chloride ($\text{LiCl}$) in 150.0 mL of water, given that the density of water is 1.00 g/mL and the final temperature of the solution is 25.0$^\circ$C. The molar enthalpy of solution of $\text{LiCl}$ is -3.00 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 59 views

Calculate the total heat change when 100 ml of 0.5 M HCl is mixed with 100 ml of 0.5 M NaOH at 25°C. Assume the heat capacity of the solution is 4.18 J/(g°C) and the density of the solution is 1 g/mL. The enthalpy of neutralization of HCl and NaOH is -57.3 kJ/mol.

asked Feb 3 in ThermoChemistry

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