Recent activity by IQELynette76

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How can the surface chemistry of metals be modified to prevent or reduce corrosion and promote passivation?

answered 20 hours ago in Surface Chemistry

1 answer 22 views

How can the electronic and magnetic properties of topological materials be predicted using quantum chemistry methods?

answered 4 days ago in Quantum Chemistry

1 answer 29 views

Calculate the polarization that occurs in an electrochemical cell when a current of 2 A flows through it for 10 minutes. The electrode area is 25 cm², and the current efficiency is 95%. The activation energy is 80 kJ/mol, and the reaction quotient is 2.5 x 10⁻⁵. The temperature of the cell is 25°C. Find the polarization resistance and the total polarization of the cell.

answered Feb 3 in ElectroChemistry

1 answer 46 views

How can we determine the elemental composition of a given sample using X-ray fluorescence spectroscopy?

answered Jan 29 in Analytical Chemistry

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A student needs to determine the amount of copper present in a sample of brass using coulometry. If the sample is dissolved in acid and subjected to coulometric analysis using a standard silver electrode, what is the concentration of copper (in ppm) in the brass sample?

asked Jan 22 in Analytical Chemistry

1 answer 76 views

A student measures the current in a galvanic cell with a standard potential of 1.10 V, using a Zinc electrode and a Copper electrode. The student recorded the current as 0.50 A. What is the rate of the electrochemical reaction occurring in the cell?

asked Jan 22 in ElectroChemistry

1 answer 62 views

What is the product formed when propene (CH2=CHCH3) reacts with HBr in the presence of peroxide as a catalyst?

asked Jan 21 in Organic Chemistry

1 answer 10 views

According to humanistic theory, how can individuals achieve self-actualisation?

answered Jan 17 in Psychology

1 answer 10 views

Where did Carl Jung develop his analytical psychology approach?

answered Jan 17 in Psychology

1 answer 26 views

Please compare and contrast the biological and sociocultural factors in personality.

answered Jan 15 in Psychology

1 answer 9 views

Compare and contrast the Yerkes-Dodson law and the inverted-U hypothesis.

asked Jan 14 in Psychology

1 answer 32 views

Which has more electrons, neon or fluorine?

asked Jan 8 in Science

1 answer 25 views

Where do lightnings build up?

asked Jan 8 in Science

1 answer 50 views

What type of protein is a protein molecule that is attached to, or associated with the membrane of a cell or an organelle?

asked Jan 8 in Science

1 answer 56 views

What is the name of the small bumps that contain taste buds and covers the tongue?

answered Jan 7 in Science

1 answer 26 views

Synthesis, decomposition, replacement, and combustion are all types of what reaction?

asked Dec 31, 2024 in Science

1 answer 26 views

Practical limits of van de graaff generators arise because the large electric fields polarize and eventually do what to surrounding materials?

asked Dec 31, 2024 in Science

1 answer 51 views

What is an ionic compound that produces negative hydroxide ions when dissolved in water

answered Dec 27, 2024 in Science

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