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 Katja04J6453
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by Katja04J6453
0
votes
1
answer
34
views
What is the purity of an unknown substance if its melting point range is between 125°C to 130°C, and the literature value for the melting point of the pure substance is 132°C?
asked
6 days
ago
in
Analytical Chemistry
0
votes
1
answer
20
views
What is the predicted geometry and polarity of the inorganic molecule SO3?
asked
6 days
ago
in
Inorganic Chemistry
0
votes
1
answer
28
views
How do the photochemical properties of photosensitive materials used in photography affect the quality and durability of the final photographic image?
asked
6 days
ago
in
PhotoChemistry
0
votes
1
answer
28
views
What is the impact of pH on the surface charge of a biomembrane and how does this affect the interaction of the biomembrane with other molecules?
asked
6 days
ago
in
Surface Chemistry
0
votes
1
answer
22
views
How does the molecular structure of conductive polymers affect their electrical conductivity and mechanical flexibility, and how can these materials be optimized for use in flexible electronics with superior performance and durability?
asked
Feb 21
in
Materials Chemistry
0
votes
1
answer
31
views
What is the major product formed when 1-bromo-2-methylcyclohexane undergoes an E2 elimination reaction in the presence of a strong base? Include the complete mechanism of the reaction and explain the reason for the stereochemistry of the product.
asked
Feb 20
in
Organic Chemistry
0
votes
1
answer
29
views
What is the bond strength of a water molecule and how can it be predicted using molecular orbital theory?
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
17
views
How does the addition of a catalyst affect the equilibrium position of a chemical reaction? Provide a detailed explanation with an example.
asked
Feb 17
in
Chemical equilibrium
0
votes
1
answer
25
views
What are the effects of surface chemistry on the quality and safety of processed foods and beverages during storage?
asked
Feb 14
in
Surface Chemistry
0
votes
1
answer
26
views
How does the process of RNA transcription and translation contribute to the synthesis of proteins in living organisms, and what are the specific chemical reactions involved in this process?
asked
Feb 14
in
BioChemistry
0
votes
1
answer
29
views
How can the synthesis of quantum dots be optimized to achieve greater control over their size, composition and surface chemistry for a particular application?
asked
Feb 14
in
Materials Chemistry
0
votes
1
answer
32
views
Suppose you are given two molecules, molecule A with a single bond and molecule B with a triple bond. Using your knowledge of chemical bonding, predict which molecule will have a higher bond strength and explain why.
asked
Feb 13
in
Chemical bonding
0
votes
1
answer
42
views
How can the sensitivity and selectivity of a polymer-based sensor be improved in order to detect specific molecules in complex mixtures?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
30
views
How can the efficiency of the polymerization process be improved for the production of high-quality polymers with desirable properties?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
28
views
How can the design of a production system for surfactants be optimized to maximize yield while minimizing production costs and environmental impact?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
41
views
Calculate the standard enthalpy change for the reaction between calcium oxide (CaO) and water (H2O) to form calcium hydroxide (Ca(OH)2), given that all species are in their standard state and that the balanced chemical equation is:CaO(s) + H2O(l) → Ca(OH)2(s)The standard enthalpies of formation of CaO(s), H2O(l) and Ca(OH)2(s) are -635.1 kJ/mol, -285.8 kJ/mol, and -986.2 kJ/mol respectively.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
39
views
How does changing the concentration of reactants or products affect the rate of a reaction at equilibrium?
asked
Feb 3
in
Chemical kinetics
0
votes
1
answer
59
views
Calculate the heat of hydration for the reaction between anhydrous copper sulfate (CuSO4) and water (H2O), given that the mass of anhydrous copper sulfate used is 10 g and the temperature of the solution increases from 25°C to 35°C. The molar heat of hydration for copper sulfate pentahydrate (CuSO4.5H2O) is -90.1 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
34
views
Why is parsimony an important criterion for evaluating neuroscience theories?
asked
Jan 20
in
Psychology
0
votes
1
answer
42
views
What is a z-score?
asked
Jan 17
in
Psychology
Page:
1
2
next »
36.7k
questions
36.5k
answers
2
comments
7.6k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(14.2k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...