Recent activity by Rosaline02Y

1 answer 78 views

What is the effect of different chemical compositions on the refractive index of glasses used in optical applications?

1 answer 70 views

How does the rate of reaction vary with respect to the orientation of reactant molecules? Provide experimental evidence to support your answer.

asked Feb 22 in Chemical kinetics

1 answer 76 views

How does the presence of microplastics in the marine environment affect the bioaccumulation of toxic chemicals and lead to biomagnification in the food chain, and what can be done to mitigate this impact?

answered Feb 22 in Environmental Chemistry

1 answer 86 views

How does the presence of heavy metals, such as iron and aluminum, in acid mine drainage affect the acidity and overall water quality of surrounding bodies of water, and what steps can be taken to mitigate these impacts?

answered Feb 22 in Environmental Chemistry

1 answer 77 views

What is the optimum conditions (temperature, pressure, and reaction time) required for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas with high yield and purity?

answered Feb 22 in Chemical synthesis

1 answer 85 views

How does the morphology of catalyst surfaces affect their catalytic activity in the conversion of reactants into products?

answered Feb 21 in Surface Chemistry

1 answer 86 views

How does the molecular weight of the polymer affect the mechanical properties of the 3D printed object?

asked Feb 21 in Materials Chemistry

1 answer 76 views

How does the molecular weight of a polymer affect its physical properties at different temperatures, and what is the relationship between polymer molecular weight and its glass transition temperature?

asked Feb 21 in Physical Chemistry

1 answer 78 views

How does the concentration of salt affect the formation of protein-protein complexes?

answered Feb 19 in BioChemistry

1 answer 86 views

What is the chemical composition and the environmental impact of biofuels derived from different sources, such as corn, sugarcane, and algae, and how can we optimize their production to reduce their impact on the environment?

answered Feb 18 in Environmental Chemistry

1 answer 87 views

What is the balanced chemical equation for the synthesis of water from hydrogen and oxygen gas at standard temperature and pressure?

answered Feb 17 in Chemical reactions

1 answer 74 views

What is the balanced chemical equation for the complete combustion of pentane (C5H12), and how many moles of oxygen are required to burn one mole of pentane?

answered Feb 17 in Chemical reactions

1 answer 77 views

How does the addition of nanoparticles to a polymer matrix affect the thermal and mechanical properties of the resulting nanocomposite material?

answered Feb 17 in Polymer Chemistry

1 answer 80 views

How does temperature affect the phase transition of water from solid (ice) to liquid using Monte Carlo simulations in computational chemistry?

asked Feb 17 in Computational Chemistry

1 answer 82 views

What factors affect the fluorescence quantum yield of a fluorescent dye and how can these factors be optimized for maximum fluorescence intensity in photochemical experiments?

asked Feb 14 in PhotoChemistry

1 answer 89 views

What are the resonance structures of the molecule C6H5NO2 (nitrobenzene)?

answered Feb 13 in Chemical bonding

1 answer 109 views

What is the reactivity trend of Group 2 elements in the periodic table based on their electronic configuration, and why do these elements exhibit this trend?

answered Feb 13 in Inorganic Chemistry

1 answer 133 views

How do emissions from an upcoming industrial project affect the water quality of the nearby river, and what measures can be taken to mitigate the negative impact on aquatic life?

answered Feb 13 in Environmental Chemistry

1 answer 88 views

How can the electrical conductivity of semiconductors be manipulated by doping with specific impurities and what is the effect of this on the properties of electronic devices such as transistors?

asked Feb 7 in Materials Chemistry

1 answer 126 views

Calculate the standard enthalpy change for the reaction: CH3OH (l) + 3/2 O2 (g) -> CO2 (g) + 2H2O (l) given the standard enthalpies of formation for CH3OH (l), CO2 (g) and H2O (l) as -238.6 kJ/mol, -393.5 kJ/mol and -285.8 kJ/mol respectively.

asked Feb 3 in Chemical thermodynamics

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