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User KristalDmb02
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Answers by KristalDmb02
0
votes
28
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What is the efficiency of an electrochemical cell with a standard potential of 1.5 V if it releases 3000 J of electrical energy during operation with a total of 3500 J of heat energy being released?
answered
Feb 20
in
ElectroChemistry
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18
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What is the effect of different light intensities on the reaction rate of the decomposition of hydrogen peroxide catalyzed by potassium iodide at room temperature?
answered
Feb 19
in
Chemical kinetics
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28
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What is the effect of different monomer ratios on the degradation rate of PLA-PHB copolymer synthesized via solution polymerization?
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Feb 19
in
Polymer Chemistry
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27
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What is the bond angle and dipole moment of water molecule based on its molecular structure calculated using quantum mechanics principles?
answered
Feb 17
in
Physical Chemistry
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40
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How can new and innovative technology be integrated into the teaching of organic chemistry to make the subject more understandable and engaging for students who may struggle with the concepts?
answered
Feb 5
in
Chemical education
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35
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Here's a precise problem for the student to solve in Balancing Chemical Equations:Balance the chemical equation for the reaction between iron (III) oxide and carbon monoxide to produce iron and carbon dioxide gas:Fe2O3(s) + CO(g) → Fe(s) + CO2(g)
answered
Feb 4
in
Chemical reactions
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votes
57
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Determine the possible isomers of C3H8O using structural formulas and name the type of isomerism for each.
answered
Feb 4
in
Chemical bonding
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38
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Calculate the standard enthalpy change for the fusion reaction of a sodium atom. Given the enthalpy of formation of Na(g) is 107.3 kJ/mol and the enthalpy of fusion of Na(s) is 2.6 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
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votes
79
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What is the effect of increased surface area on the reaction rate of magnesium with hydrochloric acid?
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Jan 31
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Chemical kinetics
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57
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How can the concentration of sodium ions in a sample of seawater be determined using potentiometry?
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Jan 29
in
Analytical Chemistry
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61
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Determine the concentration of lead in a water sample using atomic absorption spectroscopy.
answered
Jan 29
in
Analytical Chemistry
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72
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Calculate the enthalpy change of the isomerization of but-2-ene to 2-methylpropene given the standard enthalpy of formation of but-2-ene is -20.4 kJ/mol and that of 2-methylpropene is -27.0 kJ/mol. The reaction is carried out at constant pressure and 298 K.
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Jan 23
in
ThermoChemistry
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votes
52
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What is the name of the famous experiment that demonstrated the importance of contact in reducing prejudice?
answered
Jan 20
in
Psychology
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votes
51
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According to the biopsychosocial approach, what are the factors that contribute to the development of depression?
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Jan 20
in
Psychology
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35
views
What is meant by a 'thick description'?
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Jan 17
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Psychology
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42
views
According to the social identity theory, what is social categorisation?
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Jan 16
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Psychology
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75
views
When evaluating the theories of love, what is the attachment theory of love?
answered
Jan 16
in
Psychology
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votes
15
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Please compare and contrast the humanistic and cognitive-behavioural approaches to therapy.
answered
Jan 15
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Psychology
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votes
44
views
What is advance care planning?
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Jan 14
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Psychology
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37
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When does a baby double in length and triple in weight?
answered
Jan 8
in
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