Questions by GladysMarcel

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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

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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

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1 answer 22 views

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

asked Jan 16 in Psychology

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1 answer 44 views

What is the role of the therapist in psychoanalysis?

asked Jan 13 in Psychology

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1 answer 18 views

Why are noninfectious diseases not contagious?

asked Jan 8 in Science

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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

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1 answer 20 views

What happens when materials return to their original shape?

asked Jan 6 in Science

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1 answer 19 views

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

asked Jan 3 in Science

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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

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1 answer 30 views

In mammals, hair or fur help conserve bodily what?

asked Dec 31, 2024 in Science

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1 answer 27 views

How do you test a hypothesis?

asked Dec 30, 2024 in Science

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