Questions by JuliannSfd66

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1 answer 81 views

What is the relationship between the molecular weight and the glass transition temperature of a polymer? Provide experimental evidence to support your answer.

asked Feb 24 in Physical Chemistry

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1 answer 87 views

What is the effect of varying pH levels on the rate of the reaction between hydrochloric acid (HCl) and magnesium (Mg)?

asked Feb 22 in Chemical kinetics

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1 answer 91 views

What are the most challenging aspects of understanding the periodic table and chemical elements for high school students, and what strategies can be used to overcome these difficulties?

asked Feb 21 in Chemical education

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1 answer 79 views

What is the effect of different light intensities (low, medium and high) on the rate of photochemical reactions of Chlorophyll pigment present in Spinach leaves?

asked Feb 19 in PhotoChemistry

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1 answer 81 views

What is the effect of varying pH on the activity of an enzyme that breaks down biomolecules such as carbohydrates or lipids?

asked Feb 17 in Organic Chemistry

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1 answer 108 views

How does the metal coordination and bonding affect the properties and potential applications of metallofullerenes and metalloclusters?

asked Feb 13 in Coordination Chemistry

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1 answer 166 views

How does the crystal field theory explain the color properties of transition metal complexes? Provide an example of a transition metal complex and its corresponding color that can be explained by this theory.

asked Feb 12 in Coordination Chemistry

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1 answer 93 views

How does changing the concentration of reactants affect the rate of a chemical reaction and the resulting yield of products?

asked Feb 3 in Chemical kinetics

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1 answer 110 views

Calculate the enthalpy of solution for the dissolution of 15g of potassium chloride (KCl) in 100g of water (H2O) given that the temperature change was -12.5°C. The enthalpy of fusion for KCl is 17.2 kJ/mol and the specific heat capacity of water is 4.18 J/g•°C.

asked Jan 23 in ThermoChemistry

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1 answer 60 views

Calculate the enthalpy change of dissolving 10.0 g of sodium hydroxide (NaOH) in 200.0 mL of water at 25°C. Given: the enthalpy of dissolution of NaOH is -44.5 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 94 views

Calculate the corrosion potential of a copper electrode immersed in a 0.10 M solution of copper(II) sulfate at 25°C, given that the standard reduction potential of Cu2+/Cu is +0.34 V and the pH of the solution is 4.5.

asked Jan 23 in ElectroChemistry

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1 answer 93 views

When evaluating a theory, what is the criterion for parsimony?

asked Jan 20 in Psychology

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1 answer 109 views

What is a possible negative outcome of unresolved conflict?

asked Jan 20 in Psychology

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1 answer 57 views

What are some limitations of discursive psychology?

asked Jan 20 in Psychology

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1 answer 71 views

Why do evolutionary psychologists believe that certain behaviours are innate?

asked Jan 17 in Psychology

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1 answer 75 views

How can cognitive dissonance theory be used to bring about attitude change?

asked Jan 17 in Psychology

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1 answer 61 views

When studying dissociative disorders, what is dissociative fugue?

asked Jan 17 in Psychology

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1 answer 47 views

Why is social role theory significant?

asked Jan 16 in Psychology

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1 answer 48 views

According to cognitive psychology, how does the process of attention work?

asked Jan 16 in Psychology

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1 answer 114 views

When do we use the method of constant stimuli?

asked Jan 15 in Psychology

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