Questions by ClairWaite7

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1 answer 30 views

What is the optimum reaction temperature for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer using different catalysts and what effect do these catalysts have on the reaction?

asked Feb 22 in Chemical synthesis

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1 answer 43 views

Identify the type of inorganic solid that forms from the combination of Mg and Cl atoms.

asked Feb 18 in Inorganic Chemistry

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1 answer 63 views

How does the electronic structure of a crystal of gold differ from that of a crystal of silver, as determined using density functional theory calculations?

asked Feb 12 in Computational Chemistry

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1 answer 36 views

How can the optical properties of glasses be tailored to enhance their performance in applications such as lenses, optical fibers, and displays?

asked Feb 10 in Materials Chemistry

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1 answer 39 views

How can the efficiency of the production of cosmetic products in a chemical engineering system be improved while minimizing the use of hazardous chemicals and maximizing the use of renewable resources?

asked Feb 7 in Chemical engineering

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1 answer 98 views

Determine the activation energy for the electrochemical reaction that occurs between copper and nitric acid (Cu + 4HNO3 --> Cu(NO3)2 + 2NO2 + 2H2O) given that the rate constant k is 2.31 x 10^-6 mol L^-1 s^-1 at 25°C and the rate constant increases to 3.81 x 10^-5 mol L^-1 s^-1 at 45°C.

asked Feb 4 in ElectroChemistry

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1 answer 75 views

Calculate the reaction quotient (Qc) for the chemical equation:2NO(g) + O2(g) ⇌ 2NO2(g)At a certain reaction conditions, the concentrations of NO, O2, and NO2 are 0.45 M, 0.25 M, and 0.60 M respectively. Determine if the reaction is at equilibrium and, if not, in which direction will it proceed to reach equilibrium.

asked Feb 3 in Chemical thermodynamics

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1 answer 104 views

How does the energy profile diagram for a chemical reaction provide insight into the predicted reaction rate and mechanism?

asked Jan 31 in Quantum Chemistry

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1 answer 93 views

What is the composition of a given sample of an unknown compound? Perform elemental analysis and determine the percentage of carbon, hydrogen, and nitrogen in the unknown compound.

asked Jan 30 in Analytical Chemistry

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1 answer 54 views

A question for the student to solve could be: If a certain equilibrium reaction is exothermic, and the concentration of reactant A is increased while the concentration of product B is decreased, predict the change in the equilibrium constant value (K) and explain your reasoning by applying Le Chatelier's principle.

asked Jan 22 in Chemical reactions

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1 answer 39 views

Please compare and contrast the ethics of using placebo treatments in research.

asked Jan 20 in Psychology

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1 answer 91 views

According to the Gestalt principle of common fate, what is the role of motion in grouping visual elements?

asked Jan 20 in Psychology

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1 answer 49 views

Why is the biopsychosocial approach important for understanding health?

asked Jan 20 in Psychology

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1 answer 52 views

How does social learning theory apply to persuasion?

asked Jan 20 in Psychology

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1 answer 70 views

Who is more likely to be a victim of stereotype threat?

asked Jan 20 in Psychology

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1 answer 51 views

When does depth perception occur?

asked Jan 17 in Psychology

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1 answer 107 views

According to Vygotsky, how do children acquire knowledge?

asked Jan 17 in Psychology

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1 answer 17 views

According to the cognitive-behavioural model, what is the cause of obsessive-compulsive disorder OCD ?

asked Jan 16 in Psychology

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1 answer 30 views

What is affirmative action?

asked Jan 16 in Psychology

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1 answer 59 views

What is the most influential level in the Ecological Systems Theory?

asked Jan 15 in Psychology

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