Recent activity by GermanVandyk

1 answer 28 views

Calculate the standard enthalpy change for the fusion of 1 mole of solid water (ice) at 0°C to liquid water at 0°C. Given the enthalpy of fusion of solid water as 6.01 kJ/mol and the specific heat capacity of water as 4.18 J/g°C.

answered 2 days ago in Chemical thermodynamics

1 answer 21 views

Calculate the standard enthalpy change for the combustion of methane (CH4) at constant pressure, given that the standard enthalpies of formation are -74.87 kJ/mol for methane and -393.51 kJ/mol for carbon dioxide (CO2), and 2H2(g) + O2(g) → 2H2O(l) has a standard enthalpy change of -571.66 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 28 views

How do chaperone proteins assist in the folding of newly synthesized polypeptides?

answered 2 days ago in BioChemistry

1 answer 56 views

What are the differences in chemical structure between carbohydrates and lipids, and how do these differences contribute to their distinct properties and functions in biological systems? Provide examples of each molecule and their biological roles.

answered 5 days ago in Organic Chemistry

1 answer 66 views

What are some effective study strategies that can help a chemistry student better understand complex chemical concepts, such as spectroscopy or thermodynamics?

answered 6 days ago in Chemical education

1 answer 57 views

A chemistry student is given the following information: A galvanic cell is set up consisting of a copper electrode in a copper (II) ion solution connected by a salt bridge to a silver electrode in a silver ion solution. The concentration of the copper (II) solution is 0.10 M and the concentration of the silver ion solution is 0.025 M. The measured potential of the cell is 0.66 V. Calculate the resistance of this electrochemical cell.

answered Jan 22 in ElectroChemistry

1 answer 28 views

According to Ivan Pavlov's classical conditioning, why does a dog salivate when it hears a bell?

asked Jan 20 in Psychology

1 answer 47 views

How does behaviourism differ from other psychological approaches?

asked Jan 17 in Psychology

1 answer 25 views

How can behaviourism be applied in sports coaching?

asked Jan 17 in Psychology

1 answer 23 views

Who proposed the availability heuristic?

answered Jan 16 in Psychology

1 answer 23 views

What is the importance of biology in psychology?

answered Jan 13 in Psychology

1 answer 64 views

What type of mutations cannot be passed on to offspring?

asked Jan 8 in Science

1 answer 24 views

What is the name of the thin layer that acts as a boundary between the stratosphere and the mesosphere?

asked Jan 7 in Science

1 answer 20 views

What do you call the state in which a plant slows down cellular activities and may shed its leaves?

asked Jan 6 in Science

1 answer 9 views

Traits inherited in mendelian patterns are either?

asked Dec 27, 2024 in Science

1 answer 10 views

What is another word for thermal energy?

answered Dec 27, 2024 in Science

...