Recent activity by DessieMorrel

1 answer 17 views

How can the production process of fragrances be improved to increase yield and reduce waste using chemical engineering principles?

answered 15 hours ago in Chemical engineering

1 answer 43 views

Calculate the standard enthalpy change (∆H°) for the reaction between 25.0 mL of 0.100 M HCl and 25.0 mL of 0.100 M NaOH at 25°C. The density of each solution is 1.00 g/mL and the heat capacity of the solution is 4.18 J/g·°C. The reaction takes place in a calorimeter, and the temperature increase is measured to be 8.47°C.

asked Feb 3 in Chemical thermodynamics

1 answer 73 views

What possible solutions can be implemented to improve access to chemistry textbooks and resources for students in low-income areas or developing countries where limited availability of such materials is a barrier to learning?

answered Jan 30 in Chemical education

1 answer 47 views

Calculate the change in enthalpy for the following chemical reaction: CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l) Given that the enthalpies of formation for CH4(g), CO2(g), and H2O(l) are -74.8 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol respectively.

answered Jan 23 in Chemical reactions

1 answer 66 views

Calculate the bond length between a hydrogen atom and an oxygen atom in an H2O molecule, given that the hydrogen-oxygen bond energy is 463 kJ/mol and the reduced mass of the two atoms is 1.6735 x 10^-27 kg.

asked Jan 23 in Chemical bonding

1 answer 46 views

How does the attachment theory explain personality?

answered Jan 15 in Psychology

1 answer 26 views

How do the humanistic perspective and the biopsychosocial model differ?

answered Jan 14 in Psychology

1 answer 25 views

When a metal is oxidized and a nonmetal is reduced in a redox reaction, what is the resulting compound called?

answered Jan 8 in Science

1 answer 21 views

What is the term for a fold that arches upward?

answered Jan 7 in Science

1 answer 11 views

The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. the period is completely independent of other factors, such as this?

asked Jan 2 in Science

1 answer 24 views

An enzyme is an organic catalyst produced by what?

asked Dec 30, 2024 in Science

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