Questions by PDQJenifer7

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1 answer 13 views

How does the size and shape of a nanomaterial affect its electronic and optical properties, and what is the mechanism behind these changes?

asked 1 day ago in Quantum Chemistry

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1 answer 16 views

How does the change in pH affect the reaction rate of the reaction between hydrochloric acid and magnesium ribbon?

asked 3 days ago in Chemical kinetics

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1 answer 14 views

What is the pH of a solution if the pH meter reading is 3.7?

asked 3 days ago in Analytical Chemistry

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1 answer 35 views

What factors affect the solubility of a substance in a particular solvent, and how can you use this knowledge to determine the solubility of a substance in a given solvent?

asked Feb 14 in Chemical bonding

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1 answer 35 views

How can we use molecular docking studies to identify potential drug candidates for a specific protein target involved in a disease?

asked Feb 13 in Computational Chemistry

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1 answer 32 views

What are the coordination chemistry principles behind the effectiveness of chelation therapy in treating heavy metal poisoning, and how can these principles be applied to develop more efficient chelating agents for this purpose?

asked Feb 12 in Coordination Chemistry

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1 answer 58 views

Determine the standard enthalpy change for the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) Given:ΔHf°[Fe2O3(s)] = -824.2 kJ/mol ΔHf°[CO(g)] = -110.5 kJ/mol ΔHf°[Fe(s)] = 0 kJ/mol ΔHf°[CO2(g)] = -393.5 kJ/mol

asked Feb 4 in Chemical thermodynamics

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1 answer 59 views

Calculate the enthalpy change of the reduction reaction of Fe3+ to Fe2+ when 1.44 g of Fe3+ ions are reduced using a standard hydrogen electrode (E° = 0.00 V) at 298 K. The balanced half-reaction equations are given below:Fe3+ + e- → Fe2+ ( E° = +0.77 V)H+ + e- → 1/2 H2(g) ( E° = 0.00 V)

asked Jan 23 in ThermoChemistry

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1 answer 54 views

Calculate the amount of heat absorbed when 32 grams of ice at -10°C melts into water and then further heated to 35°C. (Given: Enthalpy of fusion of ice = 6.01 kJ/mol and specific heat of water = 4.18 J/g°C)

asked Jan 23 in ThermoChemistry

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1 answer 85 views

Calculate the pH of a 0.1 M solution of hydrochloric acid (HCl).

asked Jan 21 in Inorganic Chemistry

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1 answer 38 views

What is the importance of mindfulness in counselling?

asked Jan 20 in Psychology

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1 answer 39 views

Who proposed the theory of learned helplessness?

asked Jan 20 in Psychology

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1 answer 11 views

When was the social identity theory first introduced?

asked Jan 16 in Psychology

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1 answer 33 views

Which perspective suggests that behaviour is shaped by internal experiences such as thoughts, feelings, and motives?

asked Jan 15 in Psychology

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1 answer 43 views

What is an existential crisis?

asked Jan 15 in Psychology

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1 answer 12 views

Who is considered the founder of the humanistic perspective?

asked Jan 15 in Psychology

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1 answer 25 views

What is the difference between bottom-up processing and top-down processing?

asked Jan 14 in Psychology

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1 answer 31 views

What is Kohlberg's theory of moral development?

asked Jan 14 in Psychology

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1 answer 35 views

What is absolute threshold?

asked Jan 14 in Psychology

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1 answer 26 views

What are the key challenges identified by Robert Peck's theory of psychosocial development in late life?

asked Jan 14 in Psychology

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