Recent activity by ShannaCorlis

1 answer 33 views

What is the mechanism of the Cannizzaro reaction for formaldehyde and benzaldehyde, and what factors affect the rate of this reaction?

answered 4 days ago in Organic Chemistry

1 answer 27 views

What key events in the history and evolution of chemistry have led to the modern understanding of atomic theory, and how do these historical discoveries relate to current applications in fields such as nuclear energy and nanotechnology?

asked Feb 14 in Chemical education

1 answer 42 views

How can the synthesis of biodegradable polymers be optimized to improve their biodegradability while maintaining their mechanical properties for practical applications?

asked Feb 11 in Polymer Chemistry

1 answer 62 views

What is the concentration of lead (Pb) in a water sample collected from a local river, and how does it compare to the maximum permissible limit set by the World Health Organization (WHO)? Determine the answer using atomic absorption spectroscopy and provide a detailed report including instrumental parameters, experimental procedure, and results.

asked Jan 30 in Analytical Chemistry

1 answer 96 views

A student wants to measure the heat of crystallization of sodium acetate trihydrate. The student takes 50 g of sodium acetate trihydrate and dissolves it in 100 ml of water at 70°C. The solution is then allowed to cool to 20°C, during which the sodium acetate trihydrate crystallizes out. The student measures the temperature change during this process and finds that the temperature drops to 45°C. What is the heat of crystallization of sodium acetate trihydrate in kJ/mol?

answered Jan 22 in ThermoChemistry

1 answer 33 views

When was the DSM-5 released?

answered Jan 20 in Psychology

1 answer 24 views

According to social learning theory, when do individuals learn through observation?

answered Jan 17 in Psychology

1 answer 13 views

When does the appraisal theory suggest self-esteem is important?

asked Jan 15 in Psychology

1 answer 38 views

What is phenomenology?

answered Jan 14 in Psychology

1 answer 11 views

Who is associated with the psychoanalytic school of psychology?

asked Jan 14 in Psychology

1 answer 43 views

asked Jan 14 in Psychology

1 answer 43 views

What is the Dual Process Model of Coping with Bereavement?

asked Jan 14 in Psychology

1 answer 42 views

What is the difference between the purposive and convenience sampling methods?

answered Jan 10 in Psychology

1 answer 37 views

What type of reproduction is exemplified by starfish and yeasts?

answered Jan 8 in Science

1 answer 61 views

What do you call pure substances with unique properties?

asked Jan 6 in Science

...