Recent activity by MaiSperry82

1 answer 32 views

Certainly! Here's a precise problem for the student to solve:Calculate the standard enthalpy change ($\Delta H^\circ$) for the dissolution reaction of 5.00 g of lithium chloride ($\text{LiCl}$) in 150.0 mL of water, given that the density of water is 1.00 g/mL and the final temperature of the solution is 25.0$^\circ$C. The molar enthalpy of solution of $\text{LiCl}$ is -3.00 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 31 views

Calculate the standard enthalpy change for the fusion of 100 grams of ice at 0°C to liquid water at 0°C. The specific heat capacity of water is 4.184 J/g°C, the standard enthalpy of fusion of water is 6.01 kJ/mol, and the molar mass of water is 18.015 g/mol. Assume all heat absorbed is used to melt the ice and the temperature remains constant.

answered 2 days ago in Chemical thermodynamics

1 answer 31 views

Calculate the standard enthalpy change for the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) given the following standard enthalpy of formation values: ΔHf°[Fe2O3(s)] = -824.2 kJ/mol ΔHf°[CO(g)] = -110.5 kJ/mol ΔHf°[Fe(s)] = 0 kJ/mol ΔHf°[CO2(g)] = -393.5 kJ/mol

answered 2 days ago in Chemical thermodynamics

1 answer 18 views

What is the main assumption of the vulnerability-stress model of psychosis?

asked Jan 20 in Psychology

1 answer 41 views

Why might family systems therapy be used?

asked Jan 17 in Psychology

1 answer 5 views

When evaluating theories in existential psychology, what is the importance of considering parsimony?

asked Jan 16 in Psychology

1 answer 6 views

What is triangulation in qualitative research?

asked Jan 16 in Psychology

1 answer 26 views

When was the Psychoanalytic theory first established?

answered Jan 15 in Psychology

1 answer 39 views

What term describes the tendency for adolescents to engage in risky behaviours in groups?

answered Jan 15 in Psychology

1 answer 19 views

What is the memory consolidation theory of sleep?

answered Jan 14 in Psychology

1 answer 20 views

What is the difference between sympathy and empathy?

answered Jan 13 in Psychology

1 answer 28 views

What type of compounds make up the cells and tissues of living things?

answered Jan 8 in Science

1 answer 47 views

What occurs when an unstable nucleus emits a beta particle and energy?

answered Jan 7 in Science

1 answer 40 views

What is the force of attraction between two masses?

asked Jan 7 in Science

1 answer 43 views

What is responsible for many properties of covalent compounds, which have relatively low boiling points, cannot conduct electricity, and may not dissolve in water?

asked Jan 6 in Science

1 answer 43 views

What is connected to, and dependent on, the gametophyte?

asked Jan 6 in Science

1 answer 16 views

Not all structural rearrangements of chromosomes produce nonviable, impaired, or infertile individuals. in rare instances, such a change can result in the evolution of what?

asked Dec 31, 2024 in Science

1 answer 26 views

The total energy assimilated by an ecosystem in a give period is known as what?

answered Dec 27, 2024 in Science

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