Recent activity by OMDAlyce2017

1 answer 26 views

Calculate the standard enthalpy change of the reaction below at 298K.Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)Given the following standard enthalpies of formation (ΔHf°):ΔHf°[Fe2O3(s)] = -824.2 kJ/molΔHf°[Fe(s)] = 0 kJ/molΔHf°[CO(g)] = -110.5 kJ/molΔHf°[CO2(g)] = -393.5 kJ/mol. Also, calculate the change in standard entropy of the system (ΔS°) and determine whether the reaction is spontaneous or not.

asked 2 days ago in Inorganic Chemistry

1 answer 68 views

What is the purity level of a sample of caffeine obtained from a local vendor? Determine the purity of the sample by taking multiple melting point readings and comparing the results to the literature value of caffeine's melting point.

asked 5 days ago in Analytical Chemistry

1 answer 55 views

What steps can be taken to address the issue of inadequate emphasis on chemical reactions and equations in the chemistry curriculum, and what impact would these steps have on student learning outcomes and retention rates?

asked 6 days ago in Chemical education

1 answer 25 views

Where does the debate between mind-body dualism and monism take place?

asked Jan 20 in Psychology

1 answer 35 views

According to the social cognitive theory, how do people learn to cope with trauma?

asked Jan 17 in Psychology

1 answer 54 views

What is the strengths of the integrative approach?

answered Jan 16 in Psychology

1 answer 23 views

What is the weakness of falsifiability?

answered Jan 15 in Psychology

1 answer 22 views

Who was Lev Vygotsky?

asked Jan 15 in Psychology

1 answer 5 views

What was the main focus of Wundt's research?

asked Jan 14 in Psychology

1 answer 22 views

Which chemical element is the basis of all life on earth?

answered Jan 8 in Science

1 answer 21 views

What two measurements are multiplied to find the area of a rectangle?

answered Jan 8 in Science

1 answer 25 views

What makes up most of biological tissues?

asked Jan 7 in Science

1 answer 8 views

The reaction of calcium oxide with carbon dioxide forms what?

answered Jan 2 in Science

1 answer 17 views

Anemia, leukemia, hemophilia, and sickle-cell disease are examples of conditions that primarily affect what?

asked Dec 30, 2024 in Science

1 answer 22 views

Terrestrial and aquatic are the two basic categories of what, on earth?

asked Dec 27, 2024 in Science

1 answer 27 views

Psip can be positive or negative relative to what kind of pressure?

answered Dec 27, 2024 in Science

1 answer 26 views

Internal metabolism and the external environment are the sources of heat for what?

answered Dec 27, 2024 in Science

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