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User BarbraVidal
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0
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90
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What is the most effective protecting group for amino groups in organic synthesis and why? Provide examples of its use in peptide synthesis.
answered
Feb 21
in
Organic Chemistry
0
votes
79
views
How does the concentration of reactants affect the reaction rate of the hydrolysis of sucrose and how does this impact the sustainability of the reaction?
answered
Feb 19
in
Chemical kinetics
0
votes
149
views
What is the thermodynamic reaction pathway and the corresponding reaction mechanism for the electron transfer process taking place in a redox reaction between potassium permanganate and oxalic acid in acidic medium?
answered
Feb 13
in
Quantum Chemistry
0
votes
156
views
How can the properties of polymer-based electronic materials be optimized for use in flexible electronic devices?
answered
Feb 10
in
Polymer Chemistry
0
votes
95
views
How can complex chemical concepts be simplified and better understood for students struggling to grasp them?
answered
Feb 5
in
Chemical education
0
votes
134
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Calculate the standard enthalpy change for the combustion of methane (CH4) at constant pressure, given that the standard enthalpies of formation are -74.87 kJ/mol for methane and -393.51 kJ/mol for carbon dioxide (CO2), and 2H2(g) + O2(g) → 2H2O(l) has a standard enthalpy change of -571.66 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
83
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Calculate the equilibrium constant at 25°C for the reaction: CO(g) + 3H2(g) ⇌ CH4(g) + H2O(g) If at equilibrium, the concentration of CO is 0.10 M, H2 is 0.20 M, CH4 is 0.015 M and H2O is 0.035 M.
answered
Jan 23
in
Chemical equilibrium
0
votes
85
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Calculate the enthalpy change in kJ/mol for the combustion of butane (C4H10) given that the heat of formation of CO2(g) is -393.5 kJ/mol, the heat of formation of H2O(l) is -285.8 kJ/mol, and the heat of formation of C4H10(g) is -126 kJ/mol. The balanced equation for the combustion of butane is:2C4H10(g) + 13O2(g) → 8CO2(g) + 10H2O(l) + heat.
answered
Jan 23
in
ThermoChemistry
0
votes
155
views
What is the balanced chemical equation for the oxidation of ethanol (C2H5OH) to acetic acid (CH3COOH) using potassium dichromate (K2Cr2O7) as the oxidizing agent in acidic medium?
answered
Jan 21
in
Organic Chemistry
0
votes
188
views
Identify the number of stereoisomers for the compound 2,3-dichlorobutane, and draw their structures including R/S configurations for each chiral center present in the compound.
answered
Jan 21
in
Organic Chemistry
0
votes
52
views
What is the role of the unconscious in psychodynamic therapy?
answered
Jan 20
in
Psychology
0
votes
91
views
What is the two-factor theory of emotion, and how does it explain emotional experiences?
answered
Jan 20
in
Psychology
0
votes
91
views
What is the concrete operational stage of cognitive development?
answered
Jan 20
in
Psychology
0
votes
54
views
When was the social learning theory first proposed?
answered
Jan 16
in
Psychology
0
votes
81
views
What is the difference between supervised and unsupervised learning?
answered
Jan 15
in
Psychology
0
votes
54
views
According to Adler, when does the inferiority complex develop?
answered
Jan 15
in
Psychology
0
votes
41
views
What is decolonising psychology?
answered
Jan 14
in
Psychology
0
votes
94
views
What is cultural competence in psychology?
answered
Jan 14
in
Psychology
0
votes
137
views
Who is B.F. Skinner?
answered
Jan 13
in
Psychology
0
votes
100
views
Who developed the concept of authenticity in existential psychology?
answered
Jan 10
in
Psychology
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