Recent activity by DanutaAldrid

1 answer 21 views

How can the knowledge of the molecular structure and lifecycle of a specific virus be utilized to design drugs that selectively target and inhibit viral replication, while leaving healthy cells unharmed?

answered 3 days ago in Medicinal Chemistry

1 answer 7 views

Consider the chemical reaction A(g) + B(g) ↔ 2C(g). At equilibrium, the concentration of A is 0.25 M, the concentration of B is 0.15 M, and the concentration of C is 0.40 M. What is the equilibrium constant for this reaction at the given temperature?

answered Feb 3 in Chemical equilibrium

1 answer 38 views

Calculate the standard electrode potential (E°) for the reaction below at 298K using the standard reduction potentials given:2H⁺(aq) + 2e⁻ → H₂(g) E°= 0.00VFe³⁺(aq) + e⁻ → Fe²⁺(aq) E°=+0.77V 2H⁺(aq) + Fe³⁺(aq) → H₂(g) + Fe²⁺(aq)

answered Feb 3 in Chemical thermodynamics

1 answer 52 views

Calculate the heat of formation of methane (CH4) given the standard enthalpies of formation of carbon dioxide (CO2), water (H2O), and oxygen gas (O2).

answered Jan 23 in Chemical bonding

1 answer 41 views

Calculate the heat of crystallization for the solidification of 25 grams of a solution containing 10% sucrose (C12H22O11) by mass. The enthalpy of solution for sucrose in water at a given temperature is -5.73 kJ/mol. The molar mass of sucrose is 342.3 g/mol. Assuming that the solution completely solidifies upon cooling, determine the energy released or absorbed in the process.

asked Jan 23 in ThermoChemistry

1 answer 33 views

What is the difference between empathy and sympathy in counselling?

answered Jan 20 in Psychology

1 answer 27 views

What is the just noticeable difference JND ?

answered Jan 20 in Psychology

1 answer 19 views

According to the parallel distributed processing model, what happens when we receive information?

asked Jan 17 in Psychology

1 answer 24 views

What is the feature integration theory?

answered Jan 15 in Psychology

1 answer 10 views

What type of disease is muscular dystrophy?

asked Jan 8 in Science

1 answer 31 views

What is the top part of water able to receive enough sunlight for photosynthesis called?

asked Jan 7 in Science

1 answer 31 views

What force explains why objects may float in water?

asked Jan 6 in Science

1 answer 27 views

Unlike bryophyte and fern spores (which are haploid cells dependent on moisture for rapid development of gametophytes), seeds contain a diploid embryo that will germinate into what?

asked Jan 2 in Science

1 answer 27 views

Transforming from a caterpillar to a butterfly requires a lot of what?

asked Jan 2 in Science

1 answer 33 views

On the atomic level, the dissolution of an ionic compound occurs when water interacts with the what in the crystal lattice?

answered Dec 31, 2024 in Science

1 answer 46 views

An atom that gains or loses electrons is called what?

answered Dec 30, 2024 in Science

1 answer 24 views

Alzheimer’s disease is a disease that occurs mainly in what population?

answered Dec 30, 2024 in Science

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