Questions by FilomenaWago

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1 answer 37 views

How does the presence of heavy metals in soil due to anthropogenic activities affect the growth and quality of crops, and what measures can be taken to mitigate their harmful effects on agriculture?

asked Feb 22 in Environmental Chemistry

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1 answer 33 views

How does the presence of geometric isomers affect the physical and chemical properties of coordination compounds?

asked Feb 22 in Coordination Chemistry

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1 answer 34 views

What is the pKa value of ethanoic acid (CH3COOH)? How does this value affect the acidity of the solution if the pH of the solution is 5?

asked Feb 22 in Organic Chemistry

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1 answer 26 views

How does the molecular weight of a polymer affect its mechanical properties and suitability for use in biomedical applications like tissue engineering scaffolds or drug delivery devices?

asked Feb 21 in Materials Chemistry

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1 answer 32 views

What is the equilibrium constant expression for the following reaction at 298 K?H2(g) + I2(g) ⇌ 2HI(g)

asked Feb 20 in Physical Chemistry

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1 answer 49 views

How does the use of different types of substrates impact the sensitivity and reproducibility of SERS measurements in the analysis of specific analytes?

asked Feb 17 in Surface Chemistry

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1 answer 82 views

What are the main types of liquid crystal phases and how do their properties differ from one another?

asked Feb 13 in Physical Chemistry

0 votes

1 answer 52 views

How does the insulin hormone regulate carbohydrate metabolism in the liver and skeletal muscles, and what biochemical pathways are involved in this process?

asked Feb 13 in BioChemistry

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1 answer 49 views

What is the effect of different types of doping on the electronic and optical properties of perovskite materials, specifically those used in solar cells, and how do these changes impact the efficiency of the cells?

asked Feb 12 in Quantum Chemistry

0 votes

1 answer 116 views

How does the chirality of a molecule affect its photochemical properties, and what are the practical applications of this phenomenon in chemical and biological systems?

asked Feb 12 in PhotoChemistry

+1 vote

1 answer 65 views

Using X-ray diffraction, analyze the crystal structure and determine the chemical composition of an unknown mineral sample provided.

asked Jan 30 in Analytical Chemistry

0 votes

1 answer 77 views

Calculate the heat of hydration of MgSO4·7H2O if the enthalpy change for dissolving 1 mol of MgSO4 in water is -26.83 kJ/mol, and the enthalpy change for hydrating 1 mol of MgSO4·7H2O with 7 moles of water is -233.80 kJ/mol.

asked Jan 23 in ThermoChemistry

0 votes

1 answer 98 views

A chemistry student needs to determine the effect of an increase in temperature on the equilibrium concentration of products and reactants for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g). Calculate the new concentration of NH3 at equilibrium when the temperature is raised from 300 K to 400 K.

asked Jan 22 in Chemical equilibrium

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1 answer 68 views

When was the first experimental demonstration of operant conditioning?

asked Jan 20 in Psychology

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1 answer 35 views

Why might indigenous knowledge systems be undervalued in psychology research?

asked Jan 17 in Psychology

0 votes

1 answer 80 views

In contrast, how does emotion-focussed therapy see the role of emotions in adult relationships?

asked Jan 17 in Psychology

0 votes

1 answer 35 views

What is an ideophone?

asked Jan 17 in Psychology

0 votes

1 answer 43 views

Why is a two-way ANOVA used?

asked Jan 17 in Psychology

0 votes

1 answer 78 views

What is the fake lie detector test?

asked Jan 17 in Psychology

0 votes

1 answer 41 views

Where does pragmatism place emphasis on the role of the researcher?

asked Jan 16 in Psychology

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