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User LucieFernand
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Answers by LucieFernand
0
votes
81
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What is the heat of formation for methane (CH4) at standard conditions (25°C and 1 atm pressure)? Provide your answer in kilojoules per mole (kJ/mol).
answered
Feb 20
in
Chemical bonding
0
votes
73
views
What is the effect of varying pH levels on the rate of photochemical reactions, specifically in the degradation of a particular organic dye under UV light, and how does this impact the overall efficiency of the process?
answered
Feb 20
in
PhotoChemistry
0
votes
96
views
How does the composition of phospholipids in cell membranes affect the membrane's structure and function?
answered
Feb 18
in
BioChemistry
0
votes
90
views
What is the net ATP produced per glucose molecule during the complete oxidative breakdown in the citric acid cycle and oxidative phosphorylation?
answered
Feb 18
in
BioChemistry
0
votes
79
views
How does the chemical structure of a drug affect its pharmacodynamics in the body, and how can medicinal chemists optimize the structure to achieve better therapeutic effects?
answered
Feb 18
in
Medicinal Chemistry
0
votes
80
views
How does the chemical composition of polymer-based packaging materials affect their environmental impact and what are the most effective ways to reduce their negative impact on the environment?
answered
Feb 18
in
Polymer Chemistry
0
votes
133
views
How does the structure of lipoproteins affect their function in transporting lipids within the body?
answered
Feb 13
in
BioChemistry
0
votes
77
views
How does heavy metal contamination of soil affect the growth and yield of agricultural crops, and what are some effective methods for mitigating this impact?
answered
Feb 13
in
Environmental Chemistry
0
votes
87
views
How can the design and implementation of safety control measures in the transportation and storage of hazardous chemicals minimize the risk of accidents and protect human health and the environment?
answered
Feb 6
in
Chemical engineering
0
votes
88
views
How can computational studies help in predicting the formation and stability of supramolecular complexes in solution?
answered
Feb 6
in
Computational Chemistry
0
votes
93
views
How does changing the concentration of reactants affect the rate of a chemical reaction and the resulting yield of products?
answered
Feb 3
in
Chemical kinetics
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votes
61
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How can the concentration of lead ions in a water sample be determined using square wave voltammetry?
answered
Jan 29
in
Analytical Chemistry
0
votes
90
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Calculate the heat of hydration of copper (II) sulfate pentahydrate given that 5.00 g of the hydrate was dissolved in 100.0 mL of water at 25°C, and the resulting solution temperature increased from 25°C to 30°C. The molar mass of copper (II) sulfate pentahydrate is 249.685 g/mol and the specific heat capacity of water is 4.184 J/g°C.
answered
Jan 23
in
ThermoChemistry
0
votes
82
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Calculate the enthalpy of desorption for the process of magnesium oxide (MgO) surface drying at a temperature of 500 K, given that the equilibrium pressure of water vapor above the dried MgO is 0.056 atm and the enthalpy of adsorption of water on MgO is -44.48 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
162
views
What are examples of factors that contribute to social erasure?
answered
Jan 20
in
Psychology
0
votes
70
views
When might an individual develop PTSD symptoms?
answered
Jan 20
in
Psychology
0
votes
200
views
According to Vygotsky, how do children acquire knowledge?
answered
Jan 17
in
Psychology
0
votes
116
views
When might older adults experience 'ego integrity'?
answered
Jan 17
in
Psychology
0
votes
84
views
Where might a cognitive psychologist look for the cause of depression?
answered
Jan 17
in
Psychology
0
votes
100
views
According to Behaviourism, how is behaviour learned?
answered
Jan 15
in
Psychology
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