Questions by Karine04K24

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1 answer 35 views

What is the rate constant for a first-order reaction that has a half-life of 10 minutes and an initial concentration of 0.1 M?

asked Feb 22 in Chemical kinetics

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1 answer 38 views

How does the presence of UV radiation affect the rate of DNA damage and what are the different types of repair mechanisms used to fix these damages?

asked Feb 22 in BioChemistry

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1 answer 29 views

What is the effect of surface functional groups (such as -COOH, -NH2, -OH, etc.) on the adhesion strength of a coating to a substrate, and how can this knowledge be used to develop more efficient adhesive and coating materials?

asked Feb 14 in Surface Chemistry

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1 answer 28 views

How can we predict the stability of inorganic compounds based on their chemical structures and electronic configurations?

asked Feb 14 in Inorganic Chemistry

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1 answer 47 views

What is the effect of increasing the concentration of reactants on the direction of a reaction at equilibrium?

asked Feb 13 in Chemical equilibrium

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1 answer 59 views

How can we enhance the luminescence efficiency of a certain luminescent material using photochemical techniques?

asked Feb 13 in PhotoChemistry

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1 answer 43 views

How can the efficiency of photochemical degradation of pollutants in the environment be improved using different photocatalysts?

asked Feb 7 in PhotoChemistry

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1 answer 81 views

Calculate the standard enthalpy of formation, ΔH°f, of carbon dioxide (CO2) gas given the following thermochemical equations: C(s) + O2(g) → CO2(g) ΔH°rxn = -393.5 kJ/mol C(s) + O2(g) → CO(g) ΔH°rxn = -110.5 kJ/mol CO(g) + 1/2 O2(g) → CO2(g) ΔH°rxn = -283.0 kJ/mol Assume that all reactants and products are in their standard states.

asked Feb 3 in ThermoChemistry

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1 answer 129 views

How can the pH of water affected by acid mine drainage be restored to a safe level for aquatic life?

asked Jan 30 in Environmental Chemistry

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1 answer 108 views

How can X-ray fluorescence spectroscopy be used to identify the presence of specific elements in a sample? Provide a detailed explanation of the principles involved in this technique, as well as any limitations or potential sources of error in the analysis. Use examples to illustrate your points.

asked Jan 30 in Analytical Chemistry

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1 answer 84 views

Calculate the enthalpy of combustion of butane (C4H10) in kJ/mol given that its heat of formation value is -126.6 kJ/mol and the heat of formation values of CO2 and H2O are -393.5 kJ/mol and -241.8 kJ/mol, respectively.

asked Jan 23 in ThermoChemistry

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1 answer 90 views

Why is the self-determination theory important to psychology?

asked Jan 20 in Psychology

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1 answer 85 views

Compare and contrast the biological and psychosocial models of mental illness.

asked Jan 20 in Psychology

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1 answer 89 views

According to the parallel distributed processing model, what happens when we receive information?

asked Jan 17 in Psychology

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1 answer 57 views

What is Temple Grandin known for in the field of animal psychology?

asked Jan 17 in Psychology

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1 answer 64 views

According to the Attention Schema Theory, what is attention?

asked Jan 17 in Psychology

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1 answer 47 views

According to Kohlberg, why do individuals develop moral reasoning?

asked Jan 16 in Psychology

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1 answer 42 views

Compare the potential therapeutic uses of ketamine and electroconvulsive therapy in treating depression.

asked Jan 16 in Psychology

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1 answer 74 views

Where can you find empirical evidence for the concept of gender role conflict?

asked Jan 15 in Psychology

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1 answer 47 views

What is gender role socialisation?

asked Jan 15 in Psychology

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