Recent activity by VivienScheff

1 answer 22 views

For the electrochemical reaction + ↔ + , the cell potential is 0.60 V at 25°C. If the standard reduction potential of 2+ is 0.34 V and that of 2+ is -0.74 V, calculate the equilibrium constant () for the reaction at 25°C.

asked 1 day ago in ElectroChemistry

1 answer 25 views

Calculate the standard enthalpy change for the reaction in which 50.0 mL 0.20 M HCl(aq) is mixed with 50.0 mL 0.10 M NaOH(aq) in a constant pressure calorimeter. Given that the density of both the solutions is 1.00 g/mL and the specific heat capacity of the mixture is 4.18 J/g°C. Assume the temperature change to be negligible.

asked 2 days ago in Chemical thermodynamics

1 answer 59 views

What is the molecular structure of a sample under investigation, based on the magnetic resonance spectra recorded at different temperatures and under different magnetic fields?

answered 5 days ago in Physical Chemistry

1 answer 55 views

What is the amount of copper sulfate (CuSO4) present in a sample of 5.00 grams of a compound containing only copper sulfate? Use gravimetric analysis to determine the answer.

asked 6 days ago in Analytical Chemistry

1 answer 33 views

How can the social identity approach be used to understand intergroup communication?

asked Jan 20 in Psychology

1 answer 29 views

According to the socio-cultural theory, what is the role of gender in anxiety?

asked Jan 17 in Psychology

1 answer 5 views

What is a research diary in qualitative research?

answered Jan 16 in Psychology

1 answer 23 views

Who is known for the theory of feature detection?

answered Jan 15 in Psychology

1 answer 38 views

How does the theory of sexual selection relate to human behaviour?

asked Jan 15 in Psychology

1 answer 43 views

What is the ecological perspective in community psychology?

asked Jan 13 in Psychology

1 answer 30 views

Which process involves solvent separation on a solid medium?

asked Jan 8 in Science

1 answer 17 views

What type of organism, including sea stars and sand dollars, is named for their spiny skin?

asked Jan 8 in Science

1 answer 34 views

What occurs when the crests of one wave overlap the troughs, or lowest points, of another wave?

asked Jan 7 in Science

1 answer 10 views

What falls roughly in the middle of the electromagnetic spectrum, having shorter wavelengths and higher frequencies than microwaves, but not as short and high as x rays?

asked Jan 6 in Science

1 answer 36 views

What are formed by the attraction between oppositely charged ions?

asked Jan 2 in Science

1 answer 24 views

Some hormones produced by the anterior pituitary regulate the production of hormones by other tissues belonging to what system?

asked Dec 31, 2024 in Science

1 answer 16 views

Proteins are one of four classes of what type of compounds?

asked Dec 31, 2024 in Science

1 answer 60 views

In birds, lightweight air-filled bones and a large four-chambered heart are examples of adaptations for what purpose?

answered Dec 31, 2024 in Science

1 answer 8 views

What brain structure is important in recognizing and recalling emotions?

answered Dec 27, 2024 in Science

1 answer 38 views

Mating with no strong pair-bonds is called?

asked Dec 27, 2024 in Science

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