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30
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How does the size and chemical composition of microplastics affect their potential toxicity to marine organisms?
answered
Feb 24
in
Environmental Chemistry
0
votes
30
views
How does the presence of heavy metals, such as cadmium, lead, and mercury, in soil affect the growth and productivity of crops in agriculture?
answered
Feb 22
in
Environmental Chemistry
0
votes
36
views
How does the pH value of water affect the survival and reproductive rate of fish species in polluted aquatic ecosystems?
answered
Feb 22
in
Environmental Chemistry
0
votes
33
views
What is the effect of temperature on the rate of polymerization of vinyl monomers using a free radical mechanism? Provide a detailed explanation and include graphical representation of data obtained from experiments.
answered
Feb 20
in
Polymer Chemistry
0
votes
109
views
What is the boiling point of copper (II) sulfate (CuSO4) at a pressure of 1 atmosphere?
answered
Feb 12
in
Inorganic Chemistry
0
votes
34
views
How can we control the photochromic behavior of a material by modifying its molecular structure, and what are the key photochemical properties that need to be considered?
answered
Feb 12
in
PhotoChemistry
0
votes
41
views
How can the magnetic properties of different materials be investigated for their potential use in data storage devices like hard drives?
answered
Feb 7
in
Materials Chemistry
0
votes
52
views
How can the chemical properties of antibiotics be modified to improve their efficacy against drug-resistant bacteria and reduce the emergence of new resistant strains?
answered
Feb 6
in
Medicinal Chemistry
0
votes
74
views
Calculate the standard electrode potential of the following reaction: Cu2+(aq) + 2e- ⇌ Cu(s) Given that the standard reduction potential of Cu2+(aq) is +0.34 V and the standard electrode potential of hydrogen electrode is 0.00 V.
answered
Feb 3
in
Chemical thermodynamics
0
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68
views
Calculate the power output of an electrochemical cell that uses a cathode made of silver metal immersed in a solution containing silver ions with a concentration of 0.05 M and an anode made of zinc metal immersed in a solution containing zinc ions with a concentration of 0.1 M. The temperature of the solutions is 298 K and the cell operates at a current of 0.5 A.
answered
Feb 3
in
ElectroChemistry
0
votes
96
views
What is the role of aminoacyl-tRNA synthetase in protein synthesis? How does it ensure accurate translation of the genetic code from RNA to protein?
answered
Jan 31
in
BioChemistry
0
votes
66
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How can the presence of chloride ions in a sample be identified using ion-selective electrodes and what is the concentration of chloride ions in the sample?
answered
Jan 29
in
Analytical Chemistry
0
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77
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A chemistry student needs to calculate the heat of hydration for the reaction between anhydrous magnesium chloride (MgCl2) and water (H2O) using the following data: the enthalpy change for the dissolution of anhydrous magnesium chloride in water is -63.3 kJ/mol, and the enthalpy change for the hydration of magnesium ions (Mg2+) and chloride ions (Cl-) is -192 kJ/mol and -131 kJ/mol, respectively. Calculate the overall heat of hydration (in kJ/mol) for the reaction: MgCl2(s) + 6H2O(l) → MgCl2.6H2O(s)
answered
Jan 22
in
ThermoChemistry
0
votes
73
views
How does the social identity theory explain group behaviour?
answered
Jan 20
in
Psychology
0
votes
59
views
Why are social connections important for successful aging?
answered
Jan 20
in
Psychology
0
votes
116
views
Why is Milgram's obedience study still relevant today?
answered
Jan 20
in
Psychology
0
votes
62
views
What is the gender role strain paradigm?
answered
Jan 17
in
Psychology
0
votes
45
views
How does Gestalt therapy view resistance?
answered
Jan 16
in
Psychology
0
votes
48
views
How do we assess the internal consistency of psychodynamic theories?
answered
Jan 16
in
Psychology
0
votes
68
views
According to Erik Erikson, how does personality development occur throughout the lifespan?
answered
Jan 15
in
Psychology
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