Recent activity by Sharon57F646

1 answer 53 views

What are the key structural and chemical properties that differentiate biomaterials used in tissue engineering applications from those used in other types of medical devices, and how do these properties affect their performance in vivo?

asked 5 days ago in Materials Chemistry

1 answer 54 views

What is the effect of adding a catalyst, specifically platinum, on the equilibrium position of the redox reaction between iodine and thiosulfate? Calculate the new equilibrium constant and explain the observed changes in the reaction rate and yield.

asked 6 days ago in Chemical equilibrium

1 answer 63 views

How can X-ray fluorescence spectroscopy be used to identify the presence and relative concentrations of specific elements in a sample? Provide a detailed explanation of the principles and techniques involved in this method. Additionally, discuss the limitations and potential errors that may be encountered during analysis and how these can be overcome or minimized.

asked 6 days ago in Analytical Chemistry

1 answer 39 views

A chemist is attempting to electroplate copper onto a steel surface using a copper sulfate solution. The standard reduction potential for this reaction is -0.34 V, but the scientist is only seeing a voltage of -0.53 V. Calculate the overpotential for this electrochemical reaction.

answered Jan 22 in ElectroChemistry

1 answer 25 views

How does stereotype threat impact behaviour?

answered Jan 20 in Psychology

1 answer 28 views

What is accuracy in theory evaluation?

answered Jan 16 in Psychology

1 answer 20 views

Who proposed the 'investment theory of creativity'?

asked Jan 15 in Psychology

1 answer 60 views

What is self-esteem?

asked Jan 13 in Psychology

1 answer 25 views

What is the main goal of existential therapy?

asked Jan 10 in Psychology

1 answer 15 views

What are natural resources which can be replaced in a relatively short period called?

asked Jan 3 in Science

1 answer 19 views

Water-soluble carboxylic acids ionize slightly in water to form these?

asked Jan 2 in Science

1 answer 27 views

The cytoplasm of prokaryotic cells has a high concentration of dissolved solutes. therefore, the osmotic pressure within the cell is what?

asked Dec 31, 2024 in Science

1 answer 17 views

The burning of charcoal is what type of reaction?

asked Dec 31, 2024 in Science

1 answer 20 views

Sponges possess an internal skeleton called what?

asked Dec 31, 2024 in Science

1 answer 30 views

Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what?

answered Dec 31, 2024 in Science

1 answer 39 views

Dentists occasionally use metallic mixtures called amalgams for what?

asked Dec 30, 2024 in Science

1 answer 37 views

By 180 million years ago, pangaea began to do what?

asked Dec 30, 2024 in Science

1 answer 28 views

Each species of legume is associated with a strain of __________

answered Dec 27, 2024 in Science

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