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0
votes
29
views
How does the intensity of light affect the rate of the reaction between sodium thiosulphate and hydrochloric acid?
answered
Feb 22
in
Chemical kinetics
0
votes
29
views
What is the balanced chemical equation for the synthesis reaction between magnesium and oxygen to form magnesium oxide, and what is the mass of magnesium oxide produced if 5 grams of magnesium reacts with excess oxygen?
answered
Feb 17
in
Chemical reactions
0
votes
12
views
How does the plasma treatment affect the wettability of a polymer surface?
answered
Feb 14
in
Surface Chemistry
0
votes
73
views
What is the oxidation state of sulfur in Na2S2O3 (sodium thiosulfate)?
answered
Feb 13
in
Chemical reactions
0
votes
96
views
What is the effect of concentration changes of reactants on the reaction rate in a complex reaction mechanism?
answered
Feb 13
in
Chemical kinetics
0
votes
62
views
How do the photochemical properties of enantiomers differ from one another? Provide a detailed explanation with supporting examples.
answered
Feb 13
in
PhotoChemistry
0
votes
33
views
How can we design a drug to target the abnormal metabolic processes associated with type 2 diabetes without disrupting other metabolic pathways in the body?
answered
Feb 12
in
Medicinal Chemistry
0
votes
49
views
How can molecular dynamics simulations of protein folding be used to predict the stability and behavior of proteins in different environments? Specifically, how do changes in temperature and pH affect the folding process and overall stability of proteins? Can these simulations be used to design more stable proteins for use in biotechnology and medicine?
answered
Feb 5
in
Computational Chemistry
0
votes
39
views
How can chemistry teachers effectively integrate technology into their classroom to enhance student learning and engagement?
answered
Feb 5
in
Chemical education
0
votes
81
views
Calculate the standard enthalpy change for the formation of water vapor (H2O (g)) from its elements, given that the standard enthalpy of formation of hydrogen gas (H2(g)) is -241.8 kJ/mol and the standard enthalpy of formation of oxygen gas (O2(g)) is 0 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
63
views
How does changing the pH of a solution affect the equilibrium position of an acid-base reaction between a weak acid and its conjugate base? Provide a detailed explanation and real-life examples.
answered
Feb 3
in
Chemical equilibrium
0
votes
89
views
How does changing the concentration of reactants affect the rate of reaction and its sustainability in a chemical reaction between hydrogen peroxide and potassium iodide?
answered
Feb 3
in
Chemical kinetics
0
votes
55
views
How can the concentration of copper ions in a water sample be determined accurately using voltammetry?
answered
Jan 29
in
Analytical Chemistry
0
votes
73
views
Calculate the lattice energy of magnesium oxide (MgO) given that the magnesium ion has a charge of +2 and the oxide ion has a charge of -2. The lattice energy can be calculated using the Born-Haber cycle and the following data:- The enthalpy of sublimation of magnesium (Mg) is 147 kJ/mol- The first ionization energy of magnesium is 738 kJ/mol- The enthalpy of formation of MgO is -601 kJ/mol- The electron affinity of oxygen is -141 kJ/mol- The enthalpy of dissociation of oxygen molecules is 498 kJ/mol.
answered
Jan 23
in
Inorganic Chemistry
0
votes
62
views
A sample of unknown concentration of iron (Fe) is being analyzed using spectrophotometry. The absorbance values obtained from the analysis are: 0.3, 0.6, and 0.9. Using Beer's law, determine the concentration of iron in the sample.
answered
Jan 22
in
Analytical Chemistry
0
votes
90
views
A chemistry student needs to determine the Langmuir constant and maximum adsorption capacity of a metal oxide nanoparticle using the Langmuir adsorption isotherm equation from experimental data obtained at different concentrations of a given adsorbate in the water. Determine the Langmuir equation parameters and plot the experimental data and the Langmuir model using a graph. Finally, interpret the results in terms of the adsorption behavior of metal oxide nanoparticle towards the selected adsorbate.
answered
Jan 22
in
Surface Chemistry
0
votes
57
views
Identify the structural formula and functional group of a compound that has a benzene ring with two methyl groups attached in the ortho positions and a nitro group attached in the meta position.
answered
Jan 21
in
Organic Chemistry
0
votes
54
views
What is the social-learning theory?
answered
Jan 20
in
Psychology
0
votes
135
views
Where does the debate between reductionist and holistic theories take place?
answered
Jan 20
in
Psychology
0
votes
49
views
What is the main premise of the cognitive-perceptual view of hallucinations?
answered
Jan 20
in
Psychology
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