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 AdolphI79338
Wall
Recent activity
All questions
All answers
Ask a Question
Answers by AdolphI79338
0
votes
23
views
What is the optimal temperature and reaction time required for the preparation of 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas?
answered
3 days
ago
in
Chemical synthesis
0
votes
19
views
How does the pH of a reaction mixture affect the reaction rate of the acid-catalyzed hydrolysis of sucrose?
answered
3 days
ago
in
Chemical kinetics
0
votes
22
views
What is the optimal temperature and concentration of nitric acid required for the successful preparation of 2,4-dinitrophenol from phenol via nitration? How does changing these parameters affect the yield and purity of the final product?
answered
4 days
ago
in
Chemical synthesis
0
votes
26
views
What is the efficiency of an electrochemical cell with a standard potential of 1.5 V if it releases 3000 J of electrical energy during operation with a total of 3500 J of heat energy being released?
answered
5 days
ago
in
ElectroChemistry
0
votes
25
views
How does the coordination chemistry of metal ions in metalloenzymes and metalloproteins play a role in enzymatic activity? Provide specific examples and discuss the importance of metal ion specificity in catalysis.
answered
6 days
ago
in
Coordination Chemistry
0
votes
19
views
How does the concentration of reactants affect the reaction rate of the hydrolysis of sucrose and how does this impact the sustainability of the reaction?
answered
6 days
ago
in
Chemical kinetics
0
votes
7
views
How does the activation of protein kinases affect the signal transduction pathway involved in insulin signaling?
answered
Feb 17
in
BioChemistry
0
votes
36
views
What is the effect of heavy metals such as lead and mercury on the behavior of aquatic organisms, and how do these contaminants accumulate in the food web?
answered
Feb 13
in
Environmental Chemistry
0
votes
31
views
How can the coordination chemistry principles of chelation therapy be applied to treat heavy metal poisoning? Provide a detailed explanation of the chelation process including the types of ligands used, the formation of stable complexes, and the mechanism of removing the toxic metals from the body.
answered
Feb 6
in
Coordination Chemistry
0
votes
31
views
How can inadequate training for chemistry teachers be addressed to improve students' understanding and interest in chemistry?
answered
Feb 5
in
Chemical education
0
votes
44
views
How can modifications to an existing molecule increase its efficacy and reduce its toxicity in the development of new treatments for autoimmune diseases?
answered
Feb 5
in
Medicinal Chemistry
0
votes
29
views
How can chemistry educators provide better support for students with learning disabilities in the classroom?
answered
Feb 4
in
Chemical education
0
votes
50
views
Certainly! Here's a precise problem for the student to solve:Calculate the standard enthalpy change ($\Delta H^\circ$) for the dissolution reaction of 5.00 g of lithium chloride ($\text{LiCl}$) in 150.0 mL of water, given that the density of water is 1.00 g/mL and the final temperature of the solution is 25.0$^\circ$C. The molar enthalpy of solution of $\text{LiCl}$ is -3.00 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
52
views
Calculate the standard enthalpy change for the combustion of ethane (C2H6) gas to form carbon dioxide (CO2) gas and water (H2O) vapor at 298 K and 1 atm. The balanced chemical equation for the reaction is: C2H6(g) + 3.5 O2(g) → 2 CO2(g) + 3H2O(g) Given that the standard enthalpy of formation for C2H6(g) is -84.68 kJ/mol, CO2(g) is -393.51 kJ/mol, and H2O(g) is -241.82 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
76
views
What innovative approaches can be used to improve the synthesis of metal-organic frameworks (MOFs) while minimizing waste and utilizing sustainable practices in order to optimize their potential applications in the fields of gas storage, catalysis, and drug delivery?
answered
Jan 30
in
Materials Chemistry
0
votes
39
views
Calculate the entropy change of the following reaction at 25°C and 1 atm pressure:2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g)Given the standard entropy values are:ΔS°NH3 = 192.5 J/K•molΔS°Cl2 = 223.1 J/K•molΔS°N2 = 191.6 J/K•molΔS°HCl = 186.9 J/K•mol
answered
Jan 23
in
Chemical thermodynamics
0
votes
85
views
Calculate the pH of a 0.1 M solution of hydrochloric acid (HCl).
answered
Jan 21
in
Inorganic Chemistry
0
votes
38
views
When evaluating a theory, what is the criterion for precision?
answered
Jan 20
in
Psychology
0
votes
55
views
What is the name of the theory that suggests that our behaviour is the result of the reinforcement and punishment of certain behaviours?
answered
Jan 20
in
Psychology
0
votes
70
views
How does the rubber hand illusion work?
answered
Jan 20
in
Psychology
Page:
1
2
3
next »
35.9k
questions
35.7k
answers
2
comments
7.0k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(13.4k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...