Recent activity by MckinleyW743

1 answer 29 views

Calculate the standard enthalpy change for the vaporization of 15 grams of water at its boiling point, given that the molar enthalpy of vaporization of water is 40.7 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 70 views

A chemistry student needs to determine the concentration of silver nitrate (AgNO3) in a given sample from the following information:- A 10 mL sample of 0.1 M sodium chloride (NaCl) was mixed with excess silver nitrate.- The resulting precipitate was filtered, washed, and dried. The mass of the precipitate was found to be 0.212 g.- The molar mass of AgNO3 is 169.87 g/mol.What is the concentration of AgNO3 in the original sample?

asked Jan 22 in Analytical Chemistry

1 answer 71 views

A chemistry student is investigating the surface area of activated carbon for an adsorption experiment. Using BET theory of multilayer adsorption, determine the specific surface area of the activated carbon based on the following data: - Mass of activated carbon used: 0.25g- Nitrogen adsorption at various pressures (in mmHg): - 6.523 - 9.785 - 13.092 - 19.638 - 31.725 - 45.200 - 61.587 - 84.632 - 114.684 - 147.087 Assume that the area occupied by one nitrogen molecule is 0.162 nm², and use the BET equation to calculate the specific surface area of the activated carbon material.

asked Jan 22 in Surface Chemistry

1 answer 44 views

How did William James contribute to our understanding of consciousness?

answered Jan 20 in Psychology

1 answer 49 views

According to psychodynamic theory, how can repressed childhood experiences lead to mental health difficulties?

asked Jan 20 in Psychology

1 answer 11 views

What are the implications of the information-processing approach to cognitive development for understanding memory?

asked Jan 17 in Psychology

1 answer 23 views

Where is empirical validation crucial for theoretical models?

answered Jan 16 in Psychology

1 answer 19 views

What is the psychodynamic theory?

answered Jan 13 in Psychology

1 answer 43 views

While some climate regions have multiple layers, arid regions are poor for development of what?

asked Jan 8 in Science

1 answer 28 views

What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called?

answered Jan 6 in Science

1 answer 20 views

What are the most energetic of all electromagnetic waves, which can be used to treat cancer?

answered Jan 6 in Science

1 answer 18 views

The resultant solution will contain the same amount of solute but a greater amount of what?

answered Jan 2 in Science

1 answer 20 views

Most fungi can reproduce in which 2 ways?

answered Dec 31, 2024 in Science

...