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 Ashleigh66X2
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by Ashleigh66X2
0
votes
1
answer
21
views
How does the size and shape of a catalyst affect its activity in a heterogeneous catalytic reaction?
asked
1 day
ago
in
Surface Chemistry
0
votes
1
answer
18
views
How does the rate of reaction change with an increase in temperature for the reaction between hydrochloric acid and magnesium?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
32
views
How does the rate of reaction between hydrochloric acid and magnesium change as the concentrations of the reactants vary?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
20
views
How do the properties of different types of glasses, such as borosilicate, lead glass, and fused silica, affect their suitability for use in optical applications like lenses and prisms?
asked
3 days
ago
in
Materials Chemistry
0
votes
1
answer
17
views
What is the complete mechanism of the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
3
views
What is the most efficient and optimal method for the preparation of 2,4-dinitrophenylhydrazine from hydrazine and 2,4-dinitrochlorobenzene, considering yield, purity, and safety measures?
asked
4 days
ago
in
Chemical synthesis
0
votes
1
answer
28
views
How does the concentration and type of dopant affect the electrical conductivity of graphene and what are the practical implications for its use in electronic devices?
asked
6 days
ago
in
Materials Chemistry
0
votes
1
answer
30
views
What is the bond dissociation energy of the H-Cl bond in HCl molecule, given that the bond length is 127 pm and the enthalpy change for the reaction HCl(g) → H(g) + Cl(g) is 431 kJ/mol?
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
29
views
How do persistent organic pollutants (POPs) affect the ecosystem of a local water source, and what methods can be used to effectively mitigate their impact?
asked
Feb 14
in
Environmental Chemistry
0
votes
1
answer
36
views
What is the structural difference between furan and pyrrole, and what effect does this structural difference have on their chemical reactivity and physical properties? Provide specific examples of reactions and properties to support your answer.
asked
Feb 13
in
Organic Chemistry
0
votes
1
answer
37
views
How can we enhance the luminescence efficiency of a certain luminescent material using photochemical techniques?
asked
Feb 13
in
PhotoChemistry
0
votes
1
answer
11
views
How can the synthesis and characterization of new materials be optimized for use in gas sensors for detecting hazardous chemicals and pollutants in the environment?
asked
Feb 11
in
Materials Chemistry
0
votes
1
answer
52
views
How can the rate of gas evolution in a chemical reaction be measured and controlled in order to optimize the process for industrial scale production?
asked
Feb 10
in
Chemical reactions
0
votes
1
answer
36
views
How can the impact of radioactive waste disposal on the environment be minimized using chemical methods?
asked
Feb 7
in
Environmental Chemistry
0
votes
1
answer
21
views
How can complex chemical concepts be simplified and better understood for students struggling to grasp them?
asked
Feb 6
in
Chemical education
0
votes
1
answer
42
views
How does changing the pH of a redox reaction involving copper and zinc affect the equilibrium position and which ion, Cu2+ or Zn2+, is favored?
asked
Feb 3
in
Chemical equilibrium
0
votes
1
answer
64
views
Identify the number of resonance structures for the molecule of benzene and draw all of them.
asked
Jan 31
in
Chemical bonding
0
votes
1
answer
79
views
What is the concentration of iron (II) ions in a water sample, measured in mg/L, if the sample has an absorbance reading of 0.345 at a wavelength of 477 nm using a colorimeter and following the methodology of the 1,10-phenanthroline method?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
92
views
What is the concentration of iron (Fe) in a sample of water collected from a nearby river using spectrophotometric analysis?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
73
views
A chemist mixes 0.1 mol of hydrogen (H2) with 0.2 mol of nitrogen (N2) in a 2 L flask at 400°C. The reaction H2(g) + N2(g) ⇌ 2NH3(g) establishes equilibrium. Calculate the equilibrium concentrations of hydrogen, nitrogen, and ammonia if the Kc value of the reaction at this temperature is 1.5 x 10^-2.
asked
Jan 22
in
Chemical equilibrium
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.
...