Recent activity by Ursula933014

1 answer 33 views

Determine the electronic structure and binding energy of a ruthenium-based transition metal complex using ab initio calculations, and discuss the potential reactivity of this complex in various chemical environments.

asked 1 day ago in Computational Chemistry

1 answer 52 views

How can capillary electrophoresis be used to accurately determine the concentration of different ions in a given sample?

answered Jan 29 in Analytical Chemistry

1 answer 58 views

Calculate the heat released when 300 mL of water at 20°C is mixed with 200 mL of ethanol at 25°C. The specific heat capacity of water is 4.18 J/g°C, the specific heat capacity of ethanol is 2.44 J/g°C, and the heat of mixing for water and ethanol is approximately -21 kJ/mol. Assume that both water and ethanol have a density of 1 g/mL and that the final temperature of the mixture is 22°C.

asked Jan 23 in ThermoChemistry

1 answer 40 views

Calculate the enthalpy of oxidation for the reaction of 2 moles of magnesium (Mg) with 1 mole of oxygen gas (O2) under standard conditions. Given the standard enthalpy of formation (ΔH°f) of MgO is -601.8 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 57 views

A 5 g sample of a mixture containing sand and salt is dissolved in water. The solution is filtered, and the sand is collected and dried. The dried sand has a mass of 3 g. Using mass balance calculations, determine the percentage of salt in the original mixture.

answered Jan 22 in Analytical Chemistry

1 answer 7 views

Please compare biological and cognitive explanations of depression.

asked Jan 17 in Psychology

1 answer 35 views

What is the Big Five personality trait model?

asked Jan 15 in Psychology

1 answer 22 views

What system gets less effective with age, that generally makes older people more disease susceptible?

answered Jan 7 in Science

1 answer 25 views

What is the term for animals that eat producers to get energy?

answered Jan 7 in Science

1 answer 45 views

What device measures current that flows through wire?

answered Jan 6 in Science

1 answer 7 views

What allows the electrons to move in an electrochemical system.

asked Jan 2 in Science

1 answer 22 views

Ultimately, most life forms get their energy from this?

asked Jan 2 in Science

1 answer 27 views

Cardiac veins parallel the small cardiac arteries and generally drain into what sinus?

asked Dec 30, 2024 in Science

1 answer 29 views

Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a?

answered Dec 30, 2024 in Science

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