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 HowardAlmond
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by HowardAlmond
0
votes
1
answer
25
views
What is the effect of pH on the zeta potential of colloidal particles, and how can this be measured using electrophoretic light scattering (ELS)?
asked
5 days
ago
in
Surface Chemistry
0
votes
1
answer
17
views
What is the most efficient method for synthesizing polystyrene from styrene monomer and which reaction conditions (such as temperature, catalysts, etc.) are necessary to achieve a high yield of the desired product?
asked
5 days
ago
in
Chemical synthesis
0
votes
1
answer
15
views
What is the effect of doubling the concentration of reactants on the reaction rate of the iodine clock reaction between potassium iodide (KI) and hydrogen peroxide (H2O2)?
asked
6 days
ago
in
Chemical kinetics
0
votes
1
answer
24
views
How does the reaction rate of the decomposition of hydrogen peroxide change with changes in pressure?
asked
Feb 19
in
Chemical kinetics
0
votes
1
answer
30
views
How does the crystal structure of magnetic materials affect their magnetic properties, and how can this knowledge be used to optimize their use in data storage devices like hard drives?
asked
Feb 19
in
Materials Chemistry
0
votes
1
answer
26
views
How does the concentration of pollutants in water affect the survival and reproduction of a local fish species?
asked
Feb 19
in
Environmental Chemistry
0
votes
1
answer
26
views
How does the concentration of heavy metals in water affect the growth and survival of a particular species of aquatic plant or animal?
asked
Feb 19
in
Environmental Chemistry
0
votes
1
answer
37
views
How do different types of Persistent Organic Pollutants (POPs), such as polychlorinated biphenyls (PCBs) and pesticides, impact the environment and human health, and what are the most effective methods for reducing their presence in the environment?
asked
Feb 14
in
Environmental Chemistry
0
votes
1
answer
38
views
How can we use molecular dynamics simulations to predict the binding affinities of different ligands to a target protein and ultimately design more efficient drugs with high affinity and specificity towards their target?
asked
Feb 13
in
Computational Chemistry
0
votes
1
answer
41
views
What is the hybridization of the central atom in the molecule PF5?
asked
Feb 13
in
Inorganic Chemistry
0
votes
1
answer
36
views
What is the crystal field splitting energy of octahedral complexes of Co(II) and Ni(II) with strong field ligands? How does this splitting energy affect the color of these complexes? Provide experimental evidence to support your answer.
asked
Feb 12
in
Coordination Chemistry
0
votes
1
answer
53
views
How do chaperones assist in protein folding and prevent misfolding? What is the mechanism behind their action in facilitating proper folding?
asked
Feb 12
in
BioChemistry
0
votes
1
answer
41
views
How can the sensitivity of SERS be improved for the detection of trace amounts of analytes on a surface?
asked
Feb 10
in
Surface Chemistry
0
votes
1
answer
35
views
How can knowledge of a patient's genetic makeup assist in determining the personalized dose and response to a specific drug in the treatment of cancer?
asked
Feb 6
in
Medicinal Chemistry
0
votes
1
answer
51
views
Design a distillation column for the separation of a binary mixture of ethanol and water, with a feed consisting of 50 weight percent ethanol and 50 weight percent water. The column should be able to produce a distillate product containing at least 90 weight percent ethanol, with a recovery of at least 95 weight percent of the ethanol in the feed. The feed rate is 1000 kg/hr and the reflux ratio should be optimized for the best separation efficiency. Determine the number of theoretical trays required for the column design and calculate the heat load required for the operation of the column.
asked
Feb 3
in
Chemical engineering
0
votes
1
answer
36
views
Calculate the standard enthalpy change for the fusion of 2.5 moles of ice at 0℃ to form water at 0℃. Given that the molar enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/g·℃.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
71
views
How do changes in temperature affect the rate of enzyme-catalyzed reactions?
asked
Jan 31
in
BioChemistry
0
votes
1
answer
44
views
What is the mechanism of action for the metalloenzyme carbonic anhydrase? How does the coordination chemistry of the active site contribute to its catalytic activity in converting carbon dioxide to bicarbonate?
asked
Jan 31
in
Coordination Chemistry
0
votes
1
answer
78
views
How can we increase students' exposure to chemistry in their everyday lives, and what strategies can be taken to make chemistry more relevant and engaging to them?
asked
Jan 30
in
Chemical education
0
votes
1
answer
63
views
Calculate the enthalpy change for the isomerization of butene-1 to butene-2 given that the heat of combustion of butene-1 and butene-2 are -2874 kJ/mol and -2854 kJ/mol respectively. Assume all reactants and products are in the gaseous state and that the reaction is carried out at constant pressure.
asked
Jan 23
in
ThermoChemistry
Page:
1
2
next »
36.1k
questions
35.9k
answers
2
comments
7.3k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(13.6k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...