Recent activity by BFFRachelle

1 answer 33 views

How does the excitation mechanism of a molecule affect its electronic absorption spectrum, and how can ab initio calculations be used to predict the excited state dynamics of this molecule?

asked Feb 20 in Computational Chemistry

1 answer 29 views

How does the coordination environment of a metal ion in a metalloenzyme or metalloprotein affect its function? Provide a specific example and explain the role of ligands in regulating the reactivity of the metal ion.

asked Feb 19 in Coordination Chemistry

1 answer 32 views

How does the activation of an enzyme in the signal transduction pathway regulate the intracellular concentration of a specific molecule?

answered Feb 17 in BioChemistry

1 answer 67 views

How can universities and institutions improve diversity in the chemistry field and create more opportunities for underrepresented minorities to succeed?

answered Feb 13 in Chemical education

1 answer 71 views

How can we use computational chemistry and molecular modeling to predict the behavior and interactions of a specific chemical compound under different environmental conditions, such as temperature and pressure?

asked Feb 12 in Physical Chemistry

1 answer 39 views

How can the maximum yield of acetylsalicylic acid be obtained during the preparation process using acetic anhydride and salicylic acid?

answered Feb 7 in Chemical synthesis

1 answer 35 views

How can the formulation of a paint or coating system be optimized for enhanced performance and minimized environmental impact in the production process?

answered Feb 7 in Chemical engineering

1 answer 34 views

How can the environmental impact of a proposed industrial project be assessed and minimized using chemical principles and techniques?

asked Feb 7 in Environmental Chemistry

1 answer 83 views

Determine the enthalpy change of precipitation for the reaction between 50ml of 0.1M sodium sulfate and 50ml of 0.1M barium nitrate, given that the final temperature is 25°C and the initial temperature was 30°C. The specific heat capacity of the solution is 4.18 J/g °C and the density is 1 g/mL. (Assume the reaction goes to completion and all volumes are additive.)

asked Feb 4 in ThermoChemistry

1 answer 61 views

Calculate the standard enthalpy change (∆H°) for the reaction of the coordination compound [Co(NH3)6]Cl3 (aq) with NaOH (aq) to produce [Co(NH3)6](OH)3 (aq) and NaCl (aq). Given, the standard enthalpy of formation (∆H°f) for [Co(NH3)6]Cl3, [Co(NH3)6](OH)3 and NaCl are -784.8 kJ/mol, -1273.6 kJ/mol and -411.2 kJ/mol, respectively.

answered Feb 3 in Chemical thermodynamics

1 answer 86 views

How can the use of renewable energy sources such as wind, solar, and hydroelectric power be optimized to minimize environmental impacts while also meeting increasing energy demands?

answered Jan 31 in Environmental Chemistry

1 answer 97 views

How does alternative splicing of pre-mRNA affect the function of proteins produced in eukaryotic cells?

asked Jan 31 in BioChemistry

1 answer 82 views

How does the presence of acid mine drainage in bodies of water impact the pH level, dissolved oxygen content, and heavy metal concentrations of the water, and what can be done to mitigate these effects?

asked Jan 30 in Environmental Chemistry

1 answer 78 views

A student needs to determine the enthalpy change of a chemical reaction using the Hess's Law equation. They have the following information:- The enthalpy change for Reaction 1 is -210 kJ/mol- The enthalpy change for Reaction 2 is -325 kJ/mol- The enthalpy change for Reaction 3 is 155 kJ/molThe student needs to use Hess's Law to calculate the enthalpy change for the following reaction:4A + 3B → 2CGiven the information above, what is the enthalpy change for the reaction?

answered Jan 22 in Chemical reactions

1 answer 115 views

A compound contains 29.5% sodium, 41.1% sulfur, and 29.4% oxygen by mass. Determine the empirical formula of the compound.

asked Jan 22 in Inorganic Chemistry

1 answer 112 views

A chemistry student wants to determine the Faraday constant (F) by electroplating copper on a platinum electrode using a current of 2.0 A for 10 minutes. Calculate the amount of copper deposited and use this information to determine the value of the Faraday constant.

answered Jan 22 in ElectroChemistry

1 answer 112 views

What is the oxidation state of carbon in methanol?

asked Jan 21 in Organic Chemistry

1 answer 37 views

Why is mindfulness-based cognitive therapy used?

answered Jan 20 in Psychology

1 answer 80 views

When community psychologists conduct research, what do they prioritize?

answered Jan 20 in Psychology

1 answer 43 views

What is the evidence for an individual difference in mental rotation?

answered Jan 20 in Psychology

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