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 BarryEisenbe
Wall
Recent activity
All questions
All answers
Ask a Question
Answers by BarryEisenbe
0
votes
30
views
What is the optimal ratio of diisocyanate to polyol for the synthesis of polyurethane with desired mechanical properties and how does this ratio affect the final characteristics of the material?
answered
Feb 21
in
Chemical synthesis
0
votes
31
views
What are the resonance structures of nitrate ion (NO3-) and how can they be identified using formal charges and electron-dot structures?
answered
Feb 21
in
Chemical bonding
0
votes
27
views
How does the molecular structure of a dye or pigment affect its photochemical properties, and how can this be utilized in the development of more efficient and stable dyes and pigments for various applications?
answered
Feb 21
in
PhotoChemistry
0
votes
26
views
How does the chemical structure of the nucleotides in DNA affect the fidelity and efficiency of DNA replication and repair mechanisms? Provide specific examples.
answered
Feb 18
in
BioChemistry
0
votes
32
views
What is the chemical reaction that occurs when sodium reacts with chlorine to form sodium chloride? Write the balanced equation and include the states of matter for each reactant and product.
answered
Feb 18
in
Chemical reactions
0
votes
38
views
How can the polymer electrolytes in lithium-ion batteries be optimized to improve their performance and safety?
answered
Feb 10
in
Polymer Chemistry
0
votes
62
views
How can the mechanical properties of a polymer be improved during the manufacturing process?
answered
Feb 10
in
Polymer Chemistry
0
votes
35
views
How can the efficiency of the emulsification process in the production of cosmetics be improved using chemical engineering principles?
answered
Feb 7
in
Chemical engineering
0
votes
35
views
How can computational studies help in predicting the formation and stability of supramolecular complexes in solution?
answered
Feb 5
in
Computational Chemistry
0
votes
53
views
Design a heterocyclic compound using pyridine as a starting material and incorporating at least one nitrogen atom in the heterocyclic ring. Draw the reaction mechanism involved in the synthesis and explain the role of each reagent used in the synthesis.
answered
Feb 4
in
Organic Chemistry
0
votes
46
views
How can the concentration of lead (Pb) in a given water sample be determined using atomic absorption spectroscopy, and what measures can be taken to ensure accurate quantification?
answered
Jan 29
in
Analytical Chemistry
0
votes
85
views
Calculate the corrosion potential of a copper electrode immersed in a 0.10 M solution of copper(II) sulfate at 25°C, given that the standard reduction potential of Cu2+/Cu is +0.34 V and the pH of the solution is 4.5.
answered
Jan 23
in
ElectroChemistry
0
votes
19
views
A chemistry student is given a 25 mL sample of a solution containing an unknown amount of sodium chloride. After adding excess silver nitrate solution to the sample, the student records the mass of the resulting precipitate to be 2.655 grams. Using mass balance calculations, determine the mass percentage of sodium chloride in the original solution.
answered
Jan 22
in
Analytical Chemistry
0
votes
70
views
Here is a precise problem for the student to solve:Balance the chemical equation for the reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) to form sodium chloride (NaCl) and water (H2O).
answered
Jan 21
in
Inorganic Chemistry
0
votes
100
views
What products are formed when bromoethane reacts with sodium hydroxide in a nucleophilic substitution reaction, and what type of mechanism does the reaction follow?
answered
Jan 21
in
Organic Chemistry
0
votes
69
views
Who created the broaden-and-build theory?
answered
Jan 17
in
Psychology
0
votes
46
views
How do we evaluate the parsimony of psychodynamic theories?
answered
Jan 16
in
Psychology
0
votes
65
views
Who developed the drive-reduction theory of motivation?
answered
Jan 16
in
Psychology
0
votes
39
views
What is the difference between psychodynamic psychotherapy and psychoanalysis?
answered
Jan 15
in
Psychology
0
votes
68
views
Who developed the Cannon-Bard Theory of Emotion?
answered
Jan 15
in
Psychology
Page:
1
2
next »
37.4k
questions
37.2k
answers
2
comments
14.7k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(14.9k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...