Questions by JodieBaskett

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1 answer 37 views

How does the presence of heavy metals such as lead and cadmium in soil affect plant growth, and what are the most effective methods for environmental remediation of contaminated sites with high levels of these metals?

asked Feb 22 in Environmental Chemistry

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1 answer 33 views

What are the precise conditions required to prepare 2,4,6-trinitrotoluene from toluene and nitric acid? What is the yield of the reaction, and how can it be optimized?

asked Feb 22 in Chemical synthesis

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1 answer 38 views

What is the optimal molar ratio of salicylic acid to acetic anhydride for synthesizing aspirin with a high yield?

asked Feb 21 in Chemical synthesis

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1 answer 66 views

What is the effect of different ligands on the rate of ligand substitution reactions in coordination chemistry?

asked Feb 13 in Coordination Chemistry

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1 answer 91 views

What is the enthalpy change when 10.0 g of sodium hydroxide dissolves in 200 mL of water at 25°C? The molar enthalpy of dissolution of sodium hydroxide is -44.5 kJ/mol.

asked Feb 13 in ThermoChemistry

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1 answer 31 views

How can we design drugs to specifically target cancer cells with overexpressed HER2 receptors while avoiding healthy cells without HER2 receptors?

asked Feb 12 in Medicinal Chemistry

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1 answer 49 views

How can molecular docking studies be used to design a more effective drug for a specific target protein?

asked Feb 5 in Computational Chemistry

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1 answer 65 views

Calculate the standard enthalpy change (∆H°) for the precipitation reaction between aqueous solutions of silver nitrate (AgNO3) and sodium chloride (NaCl) to form solid silver chloride (AgCl), given that 50.0 mL of 0.100 M AgNO3 and 50.0 mL of 0.100 M NaCl were combined in a calorimeter and the temperature change was recorded as -2.5°C.

asked Feb 3 in Chemical thermodynamics

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1 answer 66 views

How can capillary electrophoresis be utilized to analyze the composition of a sample containing multiple positively charged molecules at varying concentrations?

asked Jan 29 in Analytical Chemistry

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1 answer 78 views

Calculate the enthalpy change (in kJ/mol) for the chemical reaction: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l) Given the standard enthalpies of formation (ΔHf°) for C2H5OH(l) = -277.6 kJ/mol, CO2(g) = -393.5 kJ/mol, and H2O(l) = -285.8 kJ/mol.

asked Jan 23 in Chemical thermodynamics

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1 answer 55 views

A piece of zinc metal is placed in a beaker containing an acidic solution, while a copper electrode is also placed in the same solution. The copper electrode is connected to the positive terminal of a voltmeter, while the zinc electrode is connected to the negative terminal of the voltmeter. If the measured potential between the two electrodes is -0.76 V, what is the corrosion potential of the zinc electrode?

asked Jan 22 in ElectroChemistry

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1 answer 35 views

Why is random assignment important in experimental design?

asked Jan 20 in Psychology

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1 answer 73 views

What is the common ingroup identity model?

asked Jan 20 in Psychology

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1 answer 60 views

When might EMDR be used to treat PTSD?

asked Jan 17 in Psychology

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1 answer 39 views

Why is B.F. Skinner considered an influential figure in psychology?

asked Jan 17 in Psychology

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1 answer 49 views

Who believed in the concept of self-actualisation?

asked Jan 17 in Psychology

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1 answer 113 views

According to the humanistic-existential theory, what factors are necessary for achieving self-actualisation?

asked Jan 17 in Psychology

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1 answer 36 views

What is test-retest reliability?

asked Jan 16 in Psychology

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1 answer 90 views

What is the behavioural activation technique in therapy?

asked Jan 15 in Psychology

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1 answer 47 views

When evaluating the clinical significance of a cognitive behavioural study, what is meant by the term 'recovery'?

asked Jan 15 in Psychology

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