Recent activity by NellMtg43094

1 answer 45 views

How can the concentration of copper ions in a wastewater sample from a factory be determined using polarography?

answered Jan 29 in Analytical Chemistry

1 answer 39 views

A student needs to calculate the efficiency of a voltaic cell that has a standard potential difference of 0.78 V and produces a current of 2.5 A. The cell is operated for 8 hours and consumes a total of 2400 Coulombs of charge. What is the efficiency of this electrochemical cell?

answered Jan 22 in ElectroChemistry

1 answer 32 views

A chemistry student wants to determine the surface area of a metal oxide sample using the Langmuir adsorption isotherm. The student collects adsorption data at different pressures and determines the amount of gas adsorbed on the surface. The Langmuir isotherm equation used is y = Kx / (1 + Kx), where y is the fractional surface coverage, x is the pressure of the gas, and K is a constant related to the adsorption energy. The student obtains the following data:Pressure (atm) | Fractional surface coverage-------------|---------------------------

asked Jan 22 in Surface Chemistry

1 answer 24 views

When does the conventional stage of moral development occur?

answered Jan 20 in Psychology

1 answer 6 views

Where did Skinner conduct his research?

answered Jan 20 in Psychology

1 answer 21 views

According to Niko Tinbergen, what are the four levels of analysis in animal behaviour?

asked Jan 16 in Psychology

1 answer 26 views

Please list some limitations of TMS studies.

answered Jan 15 in Psychology

1 answer 4 views

Who is the most prominent name in transformational leadership theory?

asked Jan 14 in Psychology

1 answer 9 views

What is absorbed from food waste in the large intestine before it passes out of the body as feces?

asked Jan 6 in Science

1 answer 24 views

What do covalent bonds give atoms a more stable arrangement of?

asked Jan 6 in Science

1 answer 62 views

What consists of all the living things and nonliving things interacting in the same area?

asked Jan 6 in Science

1 answer 36 views

Viruses depend on what type of cells?

answered Jan 2 in Science

1 answer 28 views

If the experimental value is less than the accepted value, the error is what?

asked Dec 30, 2024 in Science

1 answer 19 views

Rupture or blockage of arteries in the head is the usual cause of what condition?

answered Dec 27, 2024 in Science

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