Questions by MorrisMcGahe

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1 answer 30 views

What is the mechanism for the excited state chemistry of the compound benzene, and how can it be optimized through ab initio calculations?

asked Feb 20 in Computational Chemistry

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1 answer 42 views

How does the degree of polymerization affect the electrical conductivity of conductive polymers used in flexible electronics?

asked Feb 19 in Materials Chemistry

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1 answer 29 views

How does the chemical composition of a biomaterial affect its mechanical properties when used in tissue engineering?

asked Feb 18 in Materials Chemistry

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1 answer 74 views

What is the oxidation state of carbon in the molecule formaldehyde (CH2O)? Also, identify which element is being reduced and which element is being oxidized in the following reaction: 2CH3OH + 3O2 → 2CO2 + 4H2O.

asked Feb 13 in Organic Chemistry

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1 answer 46 views

How can chemistry students effectively learn and understand chemical concepts when there are limited opportunities for hands-on experimentation due to factors such as cost, safety concerns, and accessibility?

asked Feb 4 in Chemical education

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1 answer 39 views

How can chemistry educators improve the presentation of chemistry concepts to make them more relatable and applicable to everyday life?

asked Feb 4 in Chemical education

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1 answer 70 views

Calculate the pH of a 0.1 M solution of acetic acid (Ka = 1.8 x 10^-5).

asked Feb 3 in Chemical reactions

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1 answer 71 views

How can the concentration of a substance be determined quantitatively in a sample by using polarography? Discuss the experimental setup, mechanism, and factors affecting the results. Provide a practical example of using polarography to determine the concentration of a particular substance in a given sample.

asked Jan 29 in Analytical Chemistry

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1 answer 74 views

Calculate the heat released when 300 mL of water at 20°C is mixed with 200 mL of ethanol at 25°C. The specific heat capacity of water is 4.18 J/g°C, the specific heat capacity of ethanol is 2.44 J/g°C, and the heat of mixing for water and ethanol is approximately -21 kJ/mol. Assume that both water and ethanol have a density of 1 g/mL and that the final temperature of the mixture is 22°C.

asked Jan 23 in ThermoChemistry

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1 answer 77 views

Calculate the Gibbs free energy change for the electrochemical reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given the standard reduction potentials: E°(Cu2+/Cu) = 0.34 V E°(Zn2+/Zn) = -0.76 V Assuming standard conditions of 1 M concentration and 1 atm pressure at 25°C.

asked Jan 23 in ElectroChemistry

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1 answer 75 views

Calculate the electronegativity difference between a hydrogen atom (H) and a chlorine atom (Cl) in the molecule HCl.

asked Jan 23 in Chemical bonding

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1 answer 43 views

What is the modular view of the brain, and how does it explain function?

asked Jan 20 in Psychology

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1 answer 93 views

How does the bystander effect impact group behaviour in emergency situations?

asked Jan 20 in Psychology

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1 answer 45 views

Who proposed the triarchic theory of intelligence?

asked Jan 20 in Psychology

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1 answer 116 views

Where did existential psychology originate?

asked Jan 17 in Psychology

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1 answer 52 views

When treating depression, what is cognitive-behavioural therapy?

asked Jan 17 in Psychology

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1 answer 54 views

Who developed the gate control theory of acupuncture?

asked Jan 16 in Psychology

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1 answer 72 views

Where is acceptance and commitment therapy ACT used in clinical psychology?

asked Jan 16 in Psychology

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1 answer 41 views

What is validity in data measurement?

asked Jan 16 in Psychology

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1 answer 84 views

Why is the psychodynamic theory criticised?

asked Jan 16 in Psychology

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