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How does the pH of a colloidal solution affect the stability and coagulation of the colloids? Investigate and explain the behavior of different types of colloids under varying pH conditions.
answered
Feb 22
in
Surface Chemistry
0
votes
37
views
What is the effect of the chemical structure of a dye or pigment on its photochemical properties? Use specific examples to support your answer.
answered
Feb 18
in
PhotoChemistry
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45
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How does the addition of nanoparticles affect the mechanical properties of polymer nanocomposites, and what is the optimal concentration of nanoparticles for improving strength and toughness without sacrificing flexibility?
answered
Feb 17
in
Polymer Chemistry
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34
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What is the effect of surface modification of nanoparticles on their physical and chemical properties, and how does this impact their application in various fields?
answered
Feb 17
in
Surface Chemistry
0
votes
95
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How does the reaction rate of the chemical reaction (mention the reaction) in the presence of catalyst (mention the catalyst) vary with changes in pH (mention the pH range)?
answered
Feb 13
in
Chemical kinetics
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66
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What is the effect of increasing the concentration of ammonia ligands on the formation of copper(II)ammonia complex ion? Provide a balanced chemical equation and calculate the equilibrium constant (Kf) for the reaction.
answered
Feb 13
in
Chemical equilibrium
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votes
68
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How does the binding of specific transcription factors to DNA sequences result in the regulation of gene expression in eukaryotic cells?
answered
Feb 13
in
BioChemistry
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58
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Calculate the standard enthalpy of formation (ΔH°f) of methane (CH4) given the following data: 2H2(g) + O2(g) → 2H2O(l) ΔH°rxn = -572 kJ/mol C(graphite) + O2(g) → CO2(g) ΔH°rxn = -394 kJ/mol Note: The enthalpy of formation of an element in its standard state is zero (0).
answered
Feb 3
in
ThermoChemistry
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116
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Given a chemical reaction at equilibrium, if the concentration of reactants is increased, predict the direction in which the reaction will shift to establish a new equilibrium position.
answered
Jan 30
in
Chemical equilibrium
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79
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A gas phase reaction occurs according to the following equation: A(g) + 2B(g) -> C(g) + D(g)The reaction is carried out at a total pressure of 2 atm and at 298 K. The initial concentrations of A and B are 0.1 M and 0.2 M, respectively. The rate of formation of C is measured to be 0.02 M/s. What is the rate of disappearance of B?
answered
Jan 22
in
Physical Chemistry
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votes
44
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What is framing?
answered
Jan 20
in
Psychology
0
votes
58
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What is the impact of attachment styles on human-AI interactions?
answered
Jan 17
in
Psychology
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votes
73
views
When was the psychodynamic theory first proposed?
answered
Jan 16
in
Psychology
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votes
89
views
Why are case studies useful in evaluating animal psychology?
answered
Jan 16
in
Psychology
0
votes
48
views
What is the place theory of hearing?
answered
Jan 13
in
Psychology
0
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135
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Which scientist was responsible for the theory of evolution by natural selection?
answered
Jan 8
in
Science
0
votes
91
views
When both momentum and kinetic energy are conserved in a closed system, the collision is called what?
answered
Jan 8
in
Science
0
votes
66
views
What do glands in the skin produce to cool down the body?
answered
Jan 6
in
Science
0
votes
54
views
Visible light is part of what spectrum?
answered
Jan 2
in
Science
0
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37
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The parts of the ears involved in balance are called what?
answered
Jan 2
in
Science
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