Recent activity by MerryR11813

1 answer 81 views

What is the effect of increasing the pH on the equilibrium position of the redox reaction between iodine and iodide ions?

answered Feb 24 in Chemical equilibrium

1 answer 86 views

How do the photochemical properties of photosensitive materials used in photography affect the quality and longevity of photographic prints?

asked Feb 22 in PhotoChemistry

1 answer 66 views

What is the effect of pH on the structure and function of proteins? Provide specific examples and explain the underlying chemical mechanisms involved.

asked Feb 22 in BioChemistry

1 answer 74 views

What are the resonance structures of the nitrate ion (NO3⁻) and how do they explain why all three oxygen atoms form equal bonds with the nitrogen atom?

asked Feb 21 in Chemical bonding

1 answer 76 views

How does the increasing atmospheric concentration of carbon dioxide affect the absorption and emission of infrared radiation, contributing to the enhanced greenhouse effect and global warming?

asked Feb 20 in Environmental Chemistry

1 answer 81 views

How does the body synthesize non-essential amino acids, and what are the key enzymes involved in this process?

answered Feb 20 in BioChemistry

1 answer 83 views

How does the surface modification of polymers affect their adhesion properties? Compare the adhesion strength of unmodified polymer surfaces to those treated with different surface modification techniques.

answered Feb 17 in Surface Chemistry

1 answer 80 views

How does surface modification affect the physical and chemical properties of a polymer, and what are some practical applications of this technique?

asked Feb 17 in Surface Chemistry

1 answer 82 views

How does the presence of quantum coherence and entanglement in molecular systems affect their reactivity and stability at the nanoscale level?

answered Feb 14 in Quantum Chemistry

1 answer 92 views

How do microorganisms assimilate di-nitrogen gas (N2) into an accessible form for living beings, and what biochemical pathways are involved in nitrogen metabolism to sustain the nitrogen balance in ecosystems?

answered Feb 13 in BioChemistry

1 answer 118 views

One potential question for a chemistry student to solve related to amino acid metabolism and biosynthesis could be: How does the activity of the enzyme glutamine synthetase contribute to the production of nonessential amino acids in the body?

asked Feb 13 in BioChemistry

1 answer 170 views

What is the role of chlorophyll pigments in the process of photosynthesis and how does it contribute to carbon fixation?

asked Feb 12 in BioChemistry

1 answer 81 views

How can the synthesis of high molecular weight polyacrylonitrile from acrylonitrile monomer be optimized to achieve maximum yield and desired properties such as thermal stability and mechanical strength?

answered Feb 11 in Chemical synthesis

1 answer 83 views

How can the properties of semiconductors be optimized for use in electronic devices such as solar cells and transistors?

answered Feb 10 in Materials Chemistry

1 answer 80 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 93 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?

answered Feb 6 in Chemical education

1 answer 86 views

How can chemistry teachers provide better support for students with learning disabilities in order to help them understand complex chemical concepts and perform well in exams?

asked Feb 5 in Chemical education

1 answer 78 views

How can chemistry students in resource-limited areas access necessary textbooks and learning resources to further their understanding of the subject?

asked Feb 5 in Chemical education

1 answer 125 views

Determine the standard enthalpy change for the dissolution of 5.00 grams of magnesium chloride in water, given that the molar mass of MgCl2 is 95.21 g/mol and the standard enthalpy change of formation for magnesium chloride is -641.3 kJ/mol.

answered Feb 4 in Chemical thermodynamics

1 answer 79 views

Consider the reaction: 2H2O (g) ⇄ 2H2 (g) + O2 (g) At 1000 K, the equilibrium constant Kc for this reaction is 4.17 x 10^-5. Suppose that initially, 0.10 moles of H2O, 0.20 moles of H2, and 0.20 moles of O2 are placed in a 1.0 L container at 1000 K. What will be the equilibrium concentrations of H2O, H2, and O2?

asked Feb 3 in Chemical equilibrium

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