Recent activity by GladysMarcel

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Calculate the standard cell potential for the following electrochemical reaction: Zn (s) + 2 Ag+ (aq) → Zn2+ (aq) + 2 Ag (s)Given: Standard Reduction Potentials are E°Zn2+ = -0.76 V, E°Ag+ = 0.80 V.

answered 2 days ago in ElectroChemistry

1 answer 54 views

What is the difference between aldehydes and ketones in terms of their functional groups and reactivity? Provide examples of aldehydes and ketones commonly found in household products and explain their uses.

answered 6 days ago in Organic Chemistry

1 answer 73 views

What is the concentration of iron (II) in a sample of water collected from a local stream, given that the absorbance of the sample is 0.35 at a wavelength of 565 nm? The iron (II) ions form a complex with 1,10-phenanthroline, which has a molar extinction coefficient of 7.58 x 10^3 L mol^-1 cm^-1 at the same wavelength.

asked 6 days ago in Analytical Chemistry

1 answer 70 views

A chemistry student is required to determine the cathodic and anodic Tafel slopes for a reaction occurring at an electrode surface. The current density at the cathodic surface is known to be 1.8 mA/cm² and the current density at the anodic surface is known to be 1.2 mA/cm². The current potential relationship is given by the Tafel equation:log (i) = log (i0) + β_c * (E-E_c) for cathodic reactionlog (i) = log (i0) + β_a * (E-E_a) for anodic reactionWhere i is the current density, i0 is the exchange current density, β_c and β_a are the cathodic and anodic Tafel slopes respectively, E is the elect

answered Jan 22 in ElectroChemistry

1 answer 51 views

What is the product formed when acetic acid reacts with thionyl chloride? Write the balanced chemical equation for the reaction and discuss the mechanism of this transformation.

asked Jan 21 in Organic Chemistry

1 answer 5 views

How can experimental designs aid in theory evaluation?

answered Jan 16 in Psychology

1 answer 22 views

According to the behavioural approach, how can behaviour be modified?

asked Jan 16 in Psychology

1 answer 13 views

What are the different types of forgetting?

answered Jan 15 in Psychology

1 answer 44 views

What is the role of the therapist in psychoanalysis?

asked Jan 13 in Psychology

1 answer 17 views

Why are noninfectious diseases not contagious?

asked Jan 8 in Science

1 answer 9 views

When amino acids bind together, they form a long chain called what, which is an essential component of protein?

asked Jan 8 in Science

1 answer 23 views

What mineral is used to produce glass?

answered Jan 7 in Science

1 answer 20 views

What happens when materials return to their original shape?

asked Jan 6 in Science

1 answer 19 views

What are plants called that grow where you don't want them?

asked Jan 3 in Science

1 answer 48 views

Varicella zoster virus causes what two illnesses?

answered Jan 2 in Science

1 answer 27 views

Roundworms exemplify what type of organization, where two or more types of tissues work together to perform a particular function as an organ?

asked Dec 31, 2024 in Science

1 answer 30 views

In mammals, hair or fur help conserve bodily what?

asked Dec 31, 2024 in Science

1 answer 21 views

In an exothermic reaction, what, specifically, is released?

answered Dec 31, 2024 in Science

1 answer 27 views

How do you test a hypothesis?

asked Dec 30, 2024 in Science

1 answer 8 views

"crossing over" occurs during what phase of mitosis?

answered Dec 27, 2024 in Science

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