Recent activity by CherylDooley

1 answer 30 views

How do the rheological properties of polymer melts vary with changes in temperature and molecular weight?

asked Feb 24 in Polymer Chemistry

1 answer 36 views

What reaction occurs between sodium and chlorine to produce sodium chloride and what is the balanced chemical equation for this synthesis reaction?

asked Feb 22 in Chemical reactions

1 answer 36 views

What is the most effective way to model the behavior of long-chain polymers using Monte Carlo simulations and how can this be used to predict the physical properties of polymer systems?

answered Feb 21 in Computational Chemistry

1 answer 37 views

How does the molecular structure of luminescent materials affect their photochemical properties?

answered Feb 21 in PhotoChemistry

1 answer 38 views

What is the mechanism of the Hofmann elimination reaction and how does it differ from the E2 reaction? Provide an example of each reaction and explain the factors that affect their selectivity.

answered Feb 20 in Organic Chemistry

1 answer 78 views

How does the chemical structure and composition of polymer-based packaging materials affect their biodegradability and environmental impact?

asked Feb 18 in Polymer Chemistry

1 answer 26 views

How does the addition of stabilizing agents affect the stability of oil-in-water emulsions?

answered Feb 17 in Surface Chemistry

1 answer 60 views

Which isomer, cisplatin or transplatin, is more effective in treating cancer and how does the isomerism of the coordination compound affect its biological activity?

answered Feb 12 in Coordination Chemistry

1 answer 71 views

How can the properties of graphene be modified to improve its suitability for electronic device applications, such as improving its conductivity or stability? Specifically, what chemical modifications, if any, can be made to the graphene structure to enhance its performance in electronic devices? How do these modifications affect the overall properties of graphene and its potential use in various electronic applications?

asked Feb 10 in Materials Chemistry

1 answer 95 views

Given the reactants Copper(II) chloride and Sodium hydroxide, predict the products of the reaction and write the balanced chemical equation.

asked Feb 4 in Inorganic Chemistry

1 answer 140 views

Determine the heat of hydration, in kJ/mol, for the reaction between solid Calcium chloride (CaCl2) and water (H2O), given that 1 mole of CaCl2 dissolves to produce 3 moles of ions and releases -82.8 kJ of heat in the process.

asked Feb 4 in ThermoChemistry

1 answer 76 views

Calculate the standard enthalpy change for the following reaction at 25°C given the enthalpies of formation (in kJ/mol) of the compounds involved:CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)Hf(CaCO3) = -1206.9 kJ/molHf(CaCl2) = -795.8 kJ/molHf(CO2) = -393.5 kJ/molHf(H2O) = -285.8 kJ/molHf(HCl) = -92.31 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 73 views

Calculate the enthalpy change when 2 moles of nitrogen gas are adsorbed onto the surface of activated charcoal at a temperature of 298 K, given that the pressure of nitrogen is 1 atm and the final pressure of nitrogen adsorbed is 0.5 atm. The standard enthalpy of formation of nitrogen gas is 0 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 35 views

Please evaluate the self-fulfilling prophecy.

answered Jan 20 in Psychology

1 answer 69 views

According to the Naturalistic Dualism Framework, what is the mind-body problem?

answered Jan 20 in Psychology

1 answer 35 views

What are the main ethical issues to consider when using animals in research?

asked Jan 20 in Psychology

1 answer 44 views

According to the social cognitive theory, how can modeling influence behaviour?

asked Jan 20 in Psychology

1 answer 99 views

Why is Aaron Beck's cognitive theory of depression important?

answered Jan 20 in Psychology

1 answer 102 views

How does the cognitive dissonance theory explain sexual behaviour?

answered Jan 17 in Psychology

1 answer 40 views

When treating mental illness, why is it important to consider the individual's cultural background?

asked Jan 17 in Psychology

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