Recent activity by JaneBass3447

1 answer 29 views

Calculate the standard enthalpy change for the reaction: 2H2(g) + O2(g) --> 2H2O(l)Given the following enthalpies of formation: ∆Hf°(H2O, l) = -285.8 kJ/mol ∆Hf°(H2, g) = -241.8 kJ/mol ∆Hf°(O2, g) = 0 kJ/mol

answered 2 days ago in Chemical thermodynamics

1 answer 40 views

Calculate the standard enthalpy change and entropy change for the reaction: 2Fe(s) + 3/2O2(g) -> Fe2O3(s) Given the standard enthalpies of formation of Fe(s), O2(g), and Fe2O3(s) are -0.44 kJ/mol, 0 kJ/mol, and -826 kJ/mol, respectively. Also, the standard molar entropy of Fe2O3(s) is 87.4 J/(mol K).

asked 2 days ago in Inorganic Chemistry

1 answer 66 views

How can we use Raman spectroscopy to identify the specific compound and its concentration in a given unknown sample? What are the advantages and limitations of using Raman spectroscopy over other analytical techniques for identifying specific compounds in a sample?

answered 6 days ago in Analytical Chemistry

1 answer 5 views

A chemistry student needs to determine the rate constant (k) and the initial rate (vo) of an enzymatic reaction that follows Michaelis-Menten kinetics. The reaction involves the conversion of substrate A to product B in the presence of an enzyme that is inhibited by a competitive inhibitor. The student should also calculate the inhibition constant (Ki) of the inhibitor and determine the type of inhibition (competitive, non-competitive or uncompetitive).

answered Jan 22 in BioChemistry

1 answer 23 views

How can Piaget's theory influence child development practices?

asked Jan 20 in Psychology

1 answer 5 views

According to the cognitive architecture of information processing, how do we process information?

answered Jan 15 in Psychology

1 answer 7 views

What is the role of anxiety in obsessive-compulsive disorder?

asked Jan 13 in Psychology

1 answer 45 views

When a solid substance is involved in a chemical reaction, only the matter from which part of the solid is exposed to other reactants?

answered Jan 8 in Science

1 answer 19 views

What type of matter transmits light without scattering it?

answered Jan 8 in Science

1 answer 22 views

What tool is useful for studying the ocean floor because the environment is remote and underwater?

answered Jan 8 in Science

1 answer 30 views

The three long muscles on the back of the knee are part of which group?

answered Jan 2 in Science

1 answer 19 views

The sum of the pressures of the hydrogen and the water vapor is equal to what?

asked Jan 2 in Science

1 answer 27 views

Name the one metal that melts below room temperature?

answered Dec 31, 2024 in Science

1 answer 25 views

A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what?

asked Dec 30, 2024 in Science

1 answer 18 views

What is the scientific term for the amount of light reflected by a surface?

asked Dec 30, 2024 in Science

1 answer 17 views

In the humoral response, what protein substances help neutralize or eliminate toxins and pathogens in the blood and lymph?

answered Dec 27, 2024 in Science

1 answer 17 views

What basic plant structures generally have large surface areas and high surface-to-volume ratios?

answered Dec 27, 2024 in Science

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