Recent activity by NamMacdonald

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How can liquid crystals be designed and synthesized to optimize their optical and electro-optical properties for use in high-resolution display technology?

answered 6 days ago in Materials Chemistry

1 answer 27 views

How can molecular docking studies improve the efficiency and accuracy of drug discovery?

asked Feb 5 in Computational Chemistry

1 answer 52 views

What strategies can be implemented to help students understand and retain the concepts of chemical reactions and equations, despite inadequate emphasis on this subject in their formal education?

answered Jan 30 in Chemical education

1 answer 55 views

What is the concentration of chloride ion in a 0.1 M hydrochloric acid solution using a chloride selective electrode?

answered Jan 30 in Analytical Chemistry

1 answer 43 views

Calculate the enthalpy change when 50 mL of 0.2 M sodium chloride solution is mixed with 50 mL of 0.2 M silver nitrate solution. The final temperature of the solution was found to be 25°C and the initial temperature of the reactants was 30°C. The specific heat of the solution is 4.18 J/g°C, and the density of the solution is 1.00 g/mL.

answered Jan 23 in ThermoChemistry

1 answer 38 views

Calculate the corrosion current density for a zinc-copper galvanic couple, with a surface area of 10 cm² each, immersed in a 0.1 M copper sulfate solution and a 0.1 M zinc sulfate solution, respectively. Given that the exchange current density for the zinc and copper electrodes are 0.0035 A/cm² and 0.1184 A/cm², respectively, What will be the corrosion rate for the zinc electrode in micrometers per year?

answered Jan 23 in ElectroChemistry

1 answer 67 views

A chemistry student is given a sample of a compound containing sulfur, oxygen, and carbon. The student needs to determine the mass percentages of each element in the compound using mass balance calculations. The sample has a total mass of 5.00 grams, and the student devises an experiment to isolate each of the three elements by chemical reactions, and the mass of each element is recorded as follows: 1.20 g sulfur, 1.80 g oxygen, and 2.00 g carbon. What are the mass percentages of sulfur, oxygen, and carbon in the compound?

answered Jan 22 in Analytical Chemistry

1 answer 22 views

What is the three-phase model of trauma therapy?

answered Jan 20 in Psychology

1 answer 52 views

What is factor analysis?

asked Jan 17 in Psychology

1 answer 61 views

How does the attribution theory explain social perception?

asked Jan 15 in Psychology

1 answer 40 views

What is the main idea behind the Social Identity Theory?

asked Jan 15 in Psychology

1 answer 40 views

What is procedural memory?

asked Jan 15 in Psychology

1 answer 9 views

What is the role of evolution in animal behaviour?

asked Jan 13 in Psychology

1 answer 23 views

What is released from the body during ejaculation?

asked Jan 6 in Science

1 answer 31 views

What has revolutionized human society over the past several decades?

answered Jan 6 in Science

1 answer 31 views

The chemical symbol of which ion is written first in ionic compounds?

answered Dec 31, 2024 in Science

1 answer 48 views

Composed largely of the polysaccharide chitin, the exoskeleton provides an effective barrier defense against most what?

asked Dec 27, 2024 in Science

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