Questions by MichelleHall

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1 answer 34 views

What is the coordination environment of zinc in the active site of the enzyme carbonic anhydrase, and how does it contribute to the catalytic activity of the enzyme?

asked Feb 19 in Coordination Chemistry

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1 answer 50 views

What are the optical properties of liquid crystals and how are they used in modern display technologies like LCDs?

asked Feb 13 in Physical Chemistry

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1 answer 66 views

What is the total number of ATP molecules generated per glucose molecule during Citric acid cycle and oxidative phosphorylation?

asked Feb 13 in BioChemistry

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1 answer 107 views

How can the principles of quantum mechanics be applied to develop a quantum computer that can efficiently perform complex calculations in quantum chemistry and materials science?

asked Feb 10 in Quantum Chemistry

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1 answer 104 views

Calculate the standard enthalpy of formation of Carbon dioxide (CO2), given the enthalpies of formation of Carbon monoxide (CO) and Oxygen gas (O2) as -110.5 kJ/mol and 0 kJ/mol, respectively.

asked Feb 3 in ThermoChemistry

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1 answer 92 views

Calculate the equilibrium constant, Kc, for the reaction below at 25°C, if the concentration of CO2 is 0.10 M, the concentration of H2 is 0.20 M, and the concentration of CO is 0.30 M.CO2(g) + H2(g) ⇌ CO(g) + H2O(g)

asked Jan 23 in Physical Chemistry

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1 answer 70 views

Calculate the enthalpy of solution of sodium chloride (NaCl) when 10 grams of NaCl is dissolved in 100 mL of water assuming that the specific heat capacity of the solution is equal to the specific heat capacity of water (4.18 J/g°C) and the temperature change is negligible.

asked Jan 23 in ThermoChemistry

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1 answer 71 views

Calculate the amount of heat absorbed or released when 20 grams of dry ice (solid carbon dioxide) is converted to gaseous carbon dioxide at -78.5°C and atmospheric pressure, given the heat of sublimation of dry ice is 25.2 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 85 views

A chemistry student needs to determine the standard enthalpy change for the formation of NH3(g) from its constituent elements, using Hess's Law calculations. The student is given the following information:ΔHf°(NH3) = -46 kJ/molΔHf°(N2) = 0 kJ/molΔHf°(H2) = 0 kJ/molΔH298°(N2H4) = 95 kJ/molΔHf°(N2H4) = 50 kJ/mol2NH3(g) + N2H4(l) → 3N2(g) + 4H2(g)What is the value of ΔHf° for NH3, based on the above data?

asked Jan 22 in ThermoChemistry

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1 answer 81 views

How did Thorndike contribute to behavioural theory?

asked Jan 20 in Psychology

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1 answer 80 views

What is the main focus of cognitive-behavioural therapy?

asked Jan 20 in Psychology

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1 answer 57 views

What is the impact of brain injuries on mental rotation?

asked Jan 20 in Psychology

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1 answer 102 views

According to the constructivist view of learning, why is it important for learners to construct their own knowledge?

asked Jan 17 in Psychology

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1 answer 60 views

Where do bottom-up processing theories suggest perception occurs?

asked Jan 17 in Psychology

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1 answer 53 views

How does mindfulness affect wellbeing?

asked Jan 15 in Psychology

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1 answer 116 views

What are some criticisms of the psychoanalytic theory of personality?

asked Jan 13 in Psychology

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1 answer 59 views

Who wrote the book, on the origin of species?

asked Jan 8 in Science

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1 answer 22 views

Where on earth do bacteria live?

asked Jan 8 in Science

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1 answer 41 views

What type of roads and parking lots prevent rainwater from soaking into the ground?

asked Jan 8 in Science

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1 answer 46 views

What term is used to describe the process of removing wastes and excess water from the body?

asked Jan 8 in Science

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