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38
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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?
answered
Feb 24
in
PhotoChemistry
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35
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How does the rate of a chosen photochemical reaction change as the temperature is increased or decreased?
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Feb 22
in
PhotoChemistry
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27
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What is the role of the metal ion in the active site of hemoglobin, and how does the coordination chemistry of the metal ion contribute to the protein's function as an oxygen carrier?
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Feb 20
in
Coordination Chemistry
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33
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What is the efficiency of an electrochemical cell when the electrode potential is +0.6V and the cell voltage is 1.8V?
answered
Feb 20
in
ElectroChemistry
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38
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What is the activation energy for the reaction of Zn and CuSO4 in a galvanic cell with a cell potential of 1.12V, given that the rate constant at 25°C is 5.7 × 10^-5 s^-1 and the activation energy is 87.4 kJ/mol?
answered
Feb 17
in
ElectroChemistry
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36
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Identify the type of colloids present and explain the particle interactions in a sample of milk.
answered
Feb 13
in
Physical Chemistry
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28
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How can we design drugs that target specific genes responsible for causing genetic disorders, such as sickle cell anemia or cystic fibrosis, while avoiding damage to healthy genes?
answered
Feb 12
in
Medicinal Chemistry
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40
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What impact do residual levels of the commonly used insecticide Chlorpyrifos have on human health when ingested through contaminated food items?
answered
Feb 12
in
Environmental Chemistry
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64
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Calculate the standard enthalpy change (∆H°) for the formation of ammonia (NH3) at 298 K using the following data: N2(g) + 3H2(g) → 2NH3(g) ∆H° = −92.4 kJ/mol Hint: Standard enthalpy change (∆H°) for a reaction is calculated by taking the sum of the standard enthalpies of the products minus the sum of the standard enthalpies of the reactants.
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Feb 3
in
Chemical thermodynamics
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145
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How many moles of copper (Cu) are present in a sample that requires 4000 coulombs of electricity to be completely oxidized in a coulometric analysis?
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Jan 30
in
Analytical Chemistry
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67
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Calculate the bond order and bond length of the nitrogen-oxygen bond present in the nitrate ion (NO3-).
answered
Jan 23
in
Inorganic Chemistry
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133
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A student received a sample of an unknown substance weighing 5 grams. After performing a series of measurements, they found that the sample contained 2.5 grams of pure calcium carbonate and an unknown amount of impurities. Using mass balance calculations, determine the weight and composition of the impurities in the sample.
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Jan 22
in
Analytical Chemistry
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41
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What is the transdiagnostic model of eating disorders?
answered
Jan 20
in
Psychology
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47
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What are some limitations of discursive psychology?
answered
Jan 20
in
Psychology
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46
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When can psychologists utilise the Circle of Security concept in their clinical work?
answered
Jan 20
in
Psychology
0
votes
46
views
Who proposed the theory of moral development?
answered
Jan 20
in
Psychology
0
votes
73
views
How might developmental disabilities affect socialisation in childhood?
answered
Jan 17
in
Psychology
0
votes
44
views
According to the cognitive model, what is the cause of depression?
answered
Jan 16
in
Psychology
0
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88
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How can spirituality and religion affect end-of-life experiences?
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Jan 14
in
Psychology
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45
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What term means anything that is detected either through human senses or with instruments and measuring devices that extend human senses?
answered
Jan 8
in
Science
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