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User Makayla14235
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Answers by Makayla14235
0
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148
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What is the boiling point of magnesium oxide (MgO) at a pressure of 1 atm?
answered
Feb 13
in
Inorganic Chemistry
0
votes
158
views
What type of intermolecular forces exist in a sample of water at room temperature?
answered
Feb 13
in
Chemical bonding
0
votes
90
views
How can chemistry students effectively learn and understand laboratory procedures and concepts, despite limited access to laboratory equipment and facilities?
answered
Feb 4
in
Chemical education
0
votes
159
views
Explain how the glass transition temperature of a polymer is influenced by its molecular weight and degree of branching.
answered
Feb 4
in
Physical Chemistry
0
votes
91
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Calculate the standard electrode potential for the following redox reaction at 298K:Fe3+(aq) + e- → Fe2+(aq) Given the E°(Fe3+/Fe2+) = +0.77V.
answered
Feb 3
in
Chemical thermodynamics
0
votes
85
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Calculate the enthalpy change when 50 mL of 2 M HCl solution reacts with excess NaOH according to the balanced chemical equation: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l) Given that the specific heat capacity of the solution is 4.18 J/g°C, and the initial and final temperatures of the solution are 25°C and 35°C, respectively. Assume a density of 1 g/mL for the solution.
answered
Jan 23
in
Chemical reactions
0
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103
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Calculate the corrosion current density (in mA/cm²) of a silver electrode in a galvanic couple with a standard hydrogen electrode if the measured potential of the silver electrode is -0.25 V versus the standard hydrogen electrode at a temperature of 25 °C. The Tafel slope of the silver electrode is 30 mV/decade and the corrosion potential of silver in the given environment is -0.15 V.
answered
Jan 23
in
ElectroChemistry
0
votes
138
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A chemistry student wants to calculate the enthalpy change (∆H) upon hydrolysis of magnesium chloride (MgCl2). The student knows that the enthalpy of formation (∆Hf) of MgCl2 is -641 kJ/mol and the enthalpy of formation of water (∆Hf) is -286 kJ/mol. The balanced chemical equation for the hydrolysis of magnesium chloride is MgCl2 + 2H2O → Mg(OH)2 + 2HCl. Calculate the enthalpy change (∆H) of this reaction.
answered
Jan 22
in
ThermoChemistry
0
votes
172
views
How can the social learning theory be applied in real-life situations?
answered
Jan 20
in
Psychology
0
votes
46
views
What were the ethical concerns regarding the Stanford Prison Experiment?
answered
Jan 20
in
Psychology
0
votes
61
views
Who proposed the psychodynamic theory?
answered
Jan 16
in
Psychology
0
votes
89
views
According to the operant conditioning theory, why do we respond to environmental stimuli?
answered
Jan 16
in
Psychology
0
votes
131
views
According to the psychodynamic perspective, what is the role of unresolved conflicts in the development of behavioural disorders?
answered
Jan 15
in
Psychology
0
votes
70
views
How can the cognitive theory be applied in therapy?
answered
Jan 15
in
Psychology
0
votes
120
views
What is the definition of emotion?
answered
Jan 15
in
Psychology
0
votes
124
views
What is the role of storytelling in indigenous psychology?
answered
Jan 15
in
Psychology
0
votes
138
views
What is the relationship between attention and cognitive processing?
answered
Jan 14
in
Psychology
0
votes
56
views
What are the two key processes involved in Erikson's psychosocial theory of development?
answered
Jan 14
in
Psychology
0
votes
101
views
What is source monitoring?
answered
Jan 14
in
Psychology
0
votes
120
views
What is the elaboration likelihood model (ELM)?
answered
Jan 14
in
Psychology
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