Recent activity by CharliKeesle

1 answer 28 views

How can insufficient emphasis on environmental chemistry in chemical education be addressed to promote awareness and understanding of the impact of chemical substances on the environment?

answered 5 days ago in Chemical education

1 answer 40 views

Calculate the standard enthalpy change of formation for ethanoic acid, given the following standard enthalpy of combustion data:- Ethanol: -1367 kJ/mol- Carbon dioxide: -393.5 kJ/mol- Water: -285.8 kJ/molThe chemical equation for the formation of ethanoic acid is:2C2H5OH + 2O2 → 2CH3COOH + 2H2O

answered Feb 3 in Chemical thermodynamics

1 answer 19 views

Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 57 views

How can UV-Vis spectroscopy be used to identify the presence of specific functional groups in a compound, such as carbonyl or aromatic groups? Provide an example of a compound containing one of these functional groups and explain how its UV-Vis spectrum would differ from a compound without these functional groups.

answered Jan 29 in Analytical Chemistry

1 answer 24 views

Who developed the concept of ego, superego and id?

asked Jan 15 in Psychology

1 answer 35 views

What is colour constancy?

answered Jan 14 in Psychology

1 answer 31 views

The process in which a sperm unites with an egg is called?

answered Jan 2 in Science

1 answer 57 views

The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses what?

asked Dec 31, 2024 in Science

1 answer 13 views

In passive transport, small molecules or ions move across the cell membrane without requiring input of what?

asked Dec 31, 2024 in Science

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