Login
Remember
Register
Science Q&A Sarvan.Net
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Categories
Users
Ask a Question
About Us
XML Sitemap
Terms of Service
User ArlenBieber1
Wall
Recent activity
All questions
All answers
Ask a Question
Answers by ArlenBieber1
0
votes
34
views
What is the mechanism for the reaction between benzene and bromine in the presence of iron catalyst? What is the structure of the intermediate formed during the reaction?
answered
3 days
ago
in
Organic Chemistry
0
votes
21
views
What is the molecular geometry and bond angles of the molecule CH4 (methane) using quantum chemistry calculations?
answered
4 days
ago
in
Quantum Chemistry
0
votes
23
views
What is the melting point of NaCl? Show your calculations and explain the factors that affect the melting point of this compound.
answered
4 days
ago
in
Inorganic Chemistry
0
votes
18
views
Identify the type of inorganic solid formed by the following elements: sodium and chlorine.
answered
5 days
ago
in
Inorganic Chemistry
0
votes
32
views
What is the effect of nanoparticle size on the surface area-to-volume ratio and how does this affect the properties of nanoparticles?
answered
5 days
ago
in
Physical Chemistry
0
votes
22
views
What is the boiling point of a substance that has only London dispersion forces as its intermolecular force, compared to a substance that has both London dispersion and dipole-dipole forces?
answered
Feb 17
in
Chemical bonding
0
votes
27
views
How does quantum coherence and entanglement affect the properties and behavior of molecular and nanoscale systems in different environments?
answered
Feb 14
in
Quantum Chemistry
0
votes
35
views
How can we use molecular modeling techniques to design new compounds that target specific skin diseases, such as psoriasis or eczema, and minimize potential side effects?
answered
Feb 13
in
Medicinal Chemistry
0
votes
34
views
What are the specific photochemical properties of gold nanoparticles and how do they differ from those of other metal nanoparticles?
answered
Feb 13
in
PhotoChemistry
0
votes
42
views
How can the properties of polyurethane be optimized by varying the diisocyanate and polyol components in the synthesis process?
answered
Feb 10
in
Chemical synthesis
0
votes
34
views
How can the magnetic properties of iron oxide nanoparticles be modified to make them more suitable for data storage applications?
answered
Feb 7
in
Materials Chemistry
0
votes
39
views
How can the electronic transport properties of a molecular system be evaluated using density functional theory (DFT) calculations, and how do factors such as molecular structure and device contacts impact the resulting transport properties?
answered
Feb 7
in
Computational Chemistry
0
votes
10
views
How can new drugs be designed to effectively target and treat neurological disorders such as Alzheimer's and Parkinson's disease while minimizing unwanted side effects and toxicity to the patient's body?
answered
Feb 5
in
Medicinal Chemistry
0
votes
46
views
Here's a precise problem for a chemistry student:Calculate the standard enthalpy of formation of propane (C3H8) using the following information: ΔH°f CO2 = -393.5 kJ/molΔH°f H2O(l) = -285.8 kJ/molΔH°f C3H8(g) = ?
answered
Feb 4
in
Chemical thermodynamics
0
votes
33
views
Calculate the standard enthalpy change for the sublimation of iodine (I2) using the given information: The standard enthalpy of fusion of iodine is 15.52 kJ/mol and the standard enthalpy of vaporization of iodine is 41.57 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
30
views
Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
53
views
How can Raman spectroscopy be utilized to identify the presence of a specific compound in a sample, and what are the advantages of using Raman spectroscopy compared to other analytical methods?
answered
Jan 29
in
Analytical Chemistry
0
votes
59
views
How can mass spectrometry be used to identify an unknown organic compound?
answered
Jan 29
in
Analytical Chemistry
0
votes
42
views
Calculate the exchange current density for a Zinc electrode immersed in a solution containing 0.1 M Zinc ions at 25 degrees Celsius, given that the standard potential of the Zinc half-reaction is -0.76 V and the transfer coefficient is 0.5. (Assume concentration polarization effects to be negligible.)
answered
Jan 23
in
ElectroChemistry
0
votes
56
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
Page:
1
2
3
next »
35.7k
questions
35.5k
answers
2
comments
7.0k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(13.2k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...