Questions by JosetteSarto

0 votes

1 answer 30 views

What is the effect of temperature on the rate of reaction between sodium thiosulphate and hydrochloric acid, and how can this relationship be quantified using the Arrhenius equation?

asked Feb 20 in Chemical kinetics

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1 answer 22 views

What is the chemical equation for the complete combustion of propane (C3H8) and what are the products produced in this reaction?

asked Feb 18 in Chemical reactions

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1 answer 27 views

How can we use size-exclusion chromatography for determining the molecular weight distribution of polymers?

asked Feb 14 in Polymer Chemistry

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1 answer 34 views

How can we use molecular modeling software to predict the behavior of enzymes in various solvent and temperature conditions during a chemical reaction?

asked Feb 13 in Physical Chemistry

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1 answer 28 views

How can improving the polymer electrolyte in a lithium-ion battery affect its performance and stability over time?

asked Feb 5 in Polymer Chemistry

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1 answer 19 views

How can a process be developed for the production of 1,4-dioxane using the principles of chemical engineering, and what are the key variables that need to be considered in the design and optimization of the process?

asked Feb 4 in Chemical engineering

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1 answer 42 views

Determine the hybridization of the central atom in the molecule SF6.

asked Feb 4 in Inorganic Chemistry

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1 answer 45 views

Calculate the resistance of an electrochemical cell given the following parameters: - The cell has a total area of 50 cm² and a separation between the electrodes of 2 cm.- The electrolyte solution has a conductivity of 2.5 × 10⁻⁴ S/cm and a temperature of 25°C.- The electrode on the left side of the cell is made of platinum and has a surface area of 25 cm². The electrode on the right side is made of silver and has a surface area of 25 cm².- The distance between each electrode and the solution is 0.5 cm.

asked Feb 3 in ElectroChemistry

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1 answer 64 views

Calculate the electronic energy levels and absorption spectra of a quantum dot composed of CdSe with a diameter of 5 nanometers and compare it to a quantum well with the same dimensions. Which structure would have a higher bandgap energy and why?

asked Jan 23 in Quantum Chemistry

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1 answer 81 views

A chemistry student wants to determine the enthalpy change of a chemical reaction. They have 25 g of sodium hydroxide and want to mix it with 50 mL of 1.0 M hydrochloric acid. What is the maximum temperature change they can expect to see, assuming constant pressure and perfect heat transfer, and what is the enthalpy change of the reaction?

asked Jan 22 in Physical Chemistry

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1 answer 26 views

When do researchers use the phenomenological approach in psychology research?

asked Jan 20 in Psychology

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1 answer 44 views

Where did Mary Ainsworth conduct her research on attachment?

asked Jan 20 in Psychology

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1 answer 44 views

What is a double-blind procedure?

asked Jan 17 in Psychology

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1 answer 51 views

What is the main criticism of the gate control theory of acupuncture?

asked Jan 16 in Psychology

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1 answer 14 views

Why is social constructionism significant?

asked Jan 16 in Psychology

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1 answer 39 views

According to behavioural neuroscience, what is the role of the brain in behaviour?

asked Jan 15 in Psychology

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1 answer 53 views

What is compliance?

asked Jan 15 in Psychology

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1 answer 53 views

What ethical issues are psychologists confronted with in their practice?

asked Jan 14 in Psychology

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1 answer 35 views

What is a fixed action pattern?

asked Jan 14 in Psychology

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1 answer 42 views

What is the fundamental attribution error?

asked Jan 10 in Psychology

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