Answers by SusannahCrow

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What is the stepwise reaction mechanism involved in the preparation of 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas, and at which step does the chlorination reaction occur?

answered 3 days ago in Chemical synthesis

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16 views

What is the oxidation product of an aldehyde and a ketone, and how can it be identified using a specific chemical test?

answered 4 days ago in Organic Chemistry

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30 views

What is the effect of the chemical structure of a dye or pigment on its photochemical properties? Use specific examples to support your answer.

answered Feb 18 in PhotoChemistry

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25 views

What is the bond strength of the CO double bond compared to the NN triple bond, and explain the reasoning behind your answer based on the concepts of bond length and bond dissociation energy?

answered Feb 18 in Chemical bonding

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10 views

How can we design a polymer-based drug delivery system that can effectively target cancer cells and release the drug at a controlled rate over a period of time?

answered Feb 12 in Polymer Chemistry

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32 views

How can the performance of polymer-based electronic materials be optimized through the control of molecular weight and branching?

answered Feb 10 in Polymer Chemistry

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38 views

Calculate the standard enthalpy change for the reaction: CuSO4 (aq) + 4NH3 (aq) -> Cu(NH3)4SO4 (aq) given that the standard enthalpy changes of formation for CuSO4 (aq) and NH3 (aq) are -771.5 kJ/mol and -46.19 kJ/mol respectively, and the standard enthalpy change of formation for Cu(NH3)4SO4 (aq) is -2130.4 kJ/mol.

answered Feb 3 in Chemical thermodynamics

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49 views

Calculate the standard enthalpy change for the reaction: CH4(g) + 2O2(g) -> CO2(g) + 2H2O(g) Given the necessary bond enthalpies are: C-H = 411 kJ/molO=O = 495 kJ/molO-H = 463 kJ/molC=O = 799 kJ/mol.

answered Feb 3 in Quantum Chemistry

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46 views

Calculate the standard enthalpy change for the formation of methane gas (CH4) from its elements carbon (solid, graphite) and hydrogen gas (H2) given the following data:ΔHf° (C(graphite)) = 0 kJ/molΔHf° (H2(g)) = 0 kJ/molΔHc° (CH4(g)) = -890.4 kJ/mol

answered Feb 3 in Chemical thermodynamics

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61 views

Calculate the enthalpy change for the reaction: 2H2 (g) + O2 (g) → 2H2O (l) given that the standard enthalpy of formation for water is -285.8 kJ/mol, and standard enthalpies of formation of H2 (g) and O2 (g) are 0 kJ/mol.

answered Jan 23 in Chemical thermodynamics

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11 views

Please evaluate the social identity model of deindividuation effects SIDE .

answered Jan 20 in Psychology

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41 views

Who proposed the cognitive-behavioural model of anxiety?

answered Jan 20 in Psychology

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62 views

According to the Rods and Cones theory, what is the function of rods and cones in the retina?

answered Jan 20 in Psychology

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48 views

Why is multicultural psychology important for understanding human diversity?

answered Jan 20 in Psychology

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35 views

When was mindfulness-based cognitive therapy MBCT introduced?

answered Jan 20 in Psychology

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76 views

Please evaluate the Maslow's hierarchy of needs.

answered Jan 20 in Psychology

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61 views

What is Konrad Lorenz known for in the field of animal psychology?

answered Jan 20 in Psychology

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12 views

What is the role of culture in cognitive development?

answered Jan 17 in Psychology

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71 views

How do biomedical models of aging differ from psychosocial models?

answered Jan 17 in Psychology

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34 views

Can AI models be used to improve mental health outcomes?

answered Jan 17 in Psychology

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