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User StanGjo3033
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What are the key photochemical properties that influence the sensitivity of silver halide materials used in black and white photography and how do these properties vary among different types of photosensitive materials?
asked
Feb 24
in
PhotoChemistry
0
votes
1
answer
87
views
What is the most effective polymer-based coating or paint for preventing corrosion on metal surfaces in a marine environment?
asked
Feb 21
in
Polymer Chemistry
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votes
1
answer
74
views
What is the molecular geometry of ammonia (NH3) and what type of intermolecular forces are present in the compound? Calculate the bond angles and explain the hybridization of the central atom.
asked
Feb 21
in
Chemical bonding
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votes
1
answer
74
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What are the mechanisms behind the photochemical properties of silver halides and how do these properties make them suitable for use in photographic films and papers?
asked
Feb 14
in
PhotoChemistry
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votes
1
answer
128
views
How has inadequate training for chemistry teachers impacted the quality of chemical education in schools, and what steps can be taken to improve teacher training to enhance the learning experience for the students?
asked
Feb 13
in
Chemical education
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votes
1
answer
94
views
How can the optical properties of a polymer be tuned to achieve specific applications, such as optical sensors or light-emitting diodes?
asked
Feb 10
in
Polymer Chemistry
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votes
1
answer
95
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How can the design of a chemical reactor be optimized for the production of 1,3-butadiene from the catalytic dehydrogenation of butene at a specific temperature, pressure, and flow rate, while minimizing unwanted by-products and maximizing yield?
asked
Feb 6
in
Chemical engineering
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votes
1
answer
81
views
How can chemistry students in underprivileged areas gain access to adequate textbooks and resources, and what can be done to address the limited availability of these materials?
asked
Feb 5
in
Chemical education
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votes
1
answer
85
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How can chemistry educators make the subject more interesting and engaging for students to increase their interest and involvement in chemistry-related courses and careers?
asked
Feb 4
in
Chemical education
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votes
1
answer
120
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Calculate the standard potential of the cell Ag(s) | Ag+(aq, 0.0100 M) || Cu2+(aq, 1.00 M) | Cu(s) at 25°C.
asked
Feb 3
in
ElectroChemistry
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votes
1
answer
124
views
Calculate the standard enthalpy change (∆H°) of combustion for methane gas (CH4) given that the heat of formation (∆Hf°) for methane is -74.87 kJ/mol and the heat of formation (∆Hf°) for carbon dioxide (CO2) is -393.51 kJ/mol, and the heat of formation (∆Hf°) for water (H2O) is -285.83 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
126
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A chemist wants to produce 5 grams of ammonia (NH3) gas through the reaction of nitrogen gas (N2) and hydrogen gas (H2). What mass of hydrogen gas is needed, assuming excess nitrogen gas is provided? (Hint: balance the chemical equation and use stoichiometry to calculate the required mass)
asked
Jan 22
in
Chemical reactions
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votes
1
answer
148
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What is the aromaticity of the nitrogen-containing heterocyclic compound pyridine? How does it differ from the aromaticity of benzene?
asked
Jan 21
in
Organic Chemistry
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votes
1
answer
39
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When is a quantitative research method used in psychology research?
asked
Jan 20
in
Psychology
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votes
1
answer
107
views
According to the elaboration likelihood model, what determines the amount of cognitive processing that occurs when evaluating a persuasive message?
asked
Jan 16
in
Psychology
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votes
1
answer
55
views
When assessing the validity of a theory, what is the most important aspect to consider?
asked
Jan 16
in
Psychology
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votes
1
answer
76
views
Where can you find empirical evidence for the concept of male privilege?
asked
Jan 15
in
Psychology
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votes
1
answer
50
views
Where can Maslow's hierarchy of needs be applied in everyday life?
asked
Jan 15
in
Psychology
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votes
1
answer
179
views
What is the schema theory?
asked
Jan 15
in
Psychology
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votes
1
answer
89
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What is medical futility?
asked
Jan 15
in
Psychology
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