Recent activity by ShanicePeele

1 answer 104 views

What is the relationship between the molecular structure and the phase behavior of liquid crystal compounds? Provide concrete examples of liquid crystal compounds and how their molecular structure affects their phase behavior.

asked Feb 24 in Physical Chemistry

1 answer 92 views

What is the balanced chemical equation for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas?

asked Feb 22 in Chemical synthesis

1 answer 83 views

What is the mechanism behind the photochemical reaction that occurs when a simple alkene is exposed to ultraviolet radiation? Provide a detailed explanation of the step-by-step process involved in this reaction and the role of photochemical intermediates.

answered Feb 22 in PhotoChemistry

1 answer 86 views

How do the photochemical properties differ between bioluminescent organisms that emit green light versus those that emit blue light?

asked Feb 22 in PhotoChemistry

1 answer 98 views

What is the effect of the molecular weight of the polymer on the efficiency of polymer-based photovoltaic materials?

asked Feb 21 in Polymer Chemistry

1 answer 83 views

How does the magnitude of zeta potential affect the stability of a colloidal system and how can it be manipulated to control flocculation?

answered Feb 20 in Surface Chemistry

1 answer 89 views

How does the addition of nanoclays affect the mechanical properties (such as tensile strength and modulus) of a polymer matrix in polymer nanocomposites?

asked Feb 17 in Polymer Chemistry

1 answer 153 views

What is the role of hydrogen bonds in maintaining the double helix structure of DNA? How many hydrogen bonds are formed between adenine and thymine base pairs compared to guanine and cytosine base pairs?

answered Feb 13 in BioChemistry

1 answer 157 views

What is the role of histones in DNA packaging and how do they regulate gene expression?

answered Feb 13 in BioChemistry

1 answer 112 views

What is the pH of a solution that contains 0.1 M HCl (hydrochloric acid)? The acid dissociation constant (Ka) of HCl is 1.3 x 10^-6.

asked Feb 13 in Chemical reactions

1 answer 95 views

What is the color of copper chloride (CuCl2) and what causes it to have that specific color?

answered Feb 12 in Inorganic Chemistry

1 answer 137 views

How can the synthesis of polyvinyl chloride from vinyl chloride monomer be optimized for maximum yield and minimal impurities? What factors can affect the reaction and how can they be controlled to achieve desired properties in the final product?

answered Feb 11 in Chemical synthesis

1 answer 119 views

How can the stability of a colloidal solution be affected by changing the pH of the system?

asked Feb 10 in Surface Chemistry

1 answer 91 views

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

asked Feb 10 in Materials Chemistry

1 answer 136 views

How can the properties of a polymer-based biomaterial be optimized for a specific tissue engineering application?

asked Feb 10 in Polymer Chemistry

1 answer 93 views

How can the inadequate training of chemistry teachers affect the learning and understanding of fundamental concepts in chemistry among high school students?

asked Feb 7 in Chemical education

1 answer 97 views

How can the design of a biological treatment system for the removal of organic matter from industrial wastewater be optimized for maximum efficiency and cost-effectiveness?

answered Feb 6 in Chemical engineering

1 answer 97 views

How can computational chemistry and molecular modeling be used to predict the chemical and physical properties of a new drug molecule before it's synthesized, allowing researchers to make informed decisions about its potential effectiveness and safety?

answered Feb 6 in Physical Chemistry

1 answer 88 views

How can students improve their preparation for chemistry-related careers, and what resources can they use to help them acquire the necessary skills and knowledge?

answered Feb 5 in Chemical education

1 answer 193 views

Calculate the standard enthalpy change for the complete combustion of methane gas (CH4) at 25°C and 1 atm pressure, given that the standard enthalpy of formation for CH4 is -74.9 kJ/mol and the standard enthalpy of formation for water (H2O) is -285.8 kJ/mol.

answered Feb 3 in Chemical thermodynamics

Categories