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What is the balanced chemical equation for the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid? Also, calculate the theoretical yield of 2,4,6-trinitrotoluene if 50 grams of toluene and excess nitric acid are used in the reaction.
answered
Feb 22
in
Chemical synthesis
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29
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What is the optimal ratio of diisocyanate and polyol required to synthesize polyurethane with desirable mechanical properties?
answered
Feb 21
in
Chemical synthesis
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26
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What is the optimal catalyst and reaction conditions for the polymerization of styrene monomer to produce high molecular weight polystyrene with controlled molecular weight distribution and low polydispersity index?
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Feb 21
in
Chemical synthesis
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31
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What is the balanced chemical equation for the synthesis of water from oxygen and hydrogen gas at standard conditions?
answered
Feb 17
in
Chemical reactions
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36
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How does the addition of a corrosion inhibitor affect the passivation process in the surface chemistry of metal corrosion?
answered
Feb 17
in
Surface Chemistry
0
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37
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How can we optimize the extrusion process parameters of polyethylene to enhance its mechanical properties?
answered
Feb 14
in
Polymer Chemistry
0
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51
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How can the efficiency of the production of ammonium nitrate fertilizer be improved through the optimization of the Haber-Bosch process?
answered
Feb 7
in
Chemical engineering
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33
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How can environmental chemistry concepts be integrated into high school chemistry curriculums to increase student awareness and understanding of the impact of chemistry on the environment?
answered
Feb 5
in
Chemical education
0
votes
46
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How can medicinal chemists develop new treatments for autoimmune diseases that target the immune system specifically without affecting other healthy cells?
answered
Feb 5
in
Medicinal Chemistry
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votes
101
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How do the electronic and optical properties of a nanomaterial change as its size decreases? Using quantum chemistry calculations, determine the change in band gap and plasmon resonance frequency of a gold nanoparticle as it decreases from 50 nm to 5 nm in diameter.
answered
Jan 31
in
Quantum Chemistry
0
votes
80
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What are the common functional groups present in alcohols and how do they affect the chemical properties of alcohols? Provide examples of reactions that alcohols undergo due to the presence of functional groups.
answered
Jan 31
in
Organic Chemistry
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81
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Calculate the entropy change when one mole of helium gas is compressed isothermally at 298 K from a volume of 10 L to 2 L. The heat capacity of helium at constant pressure, Cₚ, is 20.8 J/mol*K.
answered
Jan 23
in
Physical Chemistry
0
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63
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Calculate the enthalpy change for the hydrolysis of 50 grams of sucrose (C12H22O11) when dissolved in 500 ml of water at 25°C. The molar mass of sucrose is 342.3 g/mol and the enthalpy change per mole of sucrose is -564.8 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
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102
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A student needs to calculate the enthalpy change for a chemical reaction given the enthalpies of formation of the reactants and products. The specific problem is: Calculate the enthalpy change for the reaction:CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)Given the following enthalpies of formation:ΔHf(CH4) = -74.8 kJ/molΔHf(CO2) = -393.5 kJ/molΔHf(H2O) = -285.8 kJ/mol
answered
Jan 22
in
Chemical reactions
0
votes
91
views
Why did Zimbardo's prison study come under criticism?
answered
Jan 20
in
Psychology
0
votes
68
views
When can self-esteem be negatively affected?
answered
Jan 20
in
Psychology
0
votes
71
views
Why did Harlow's studies on attachment receive recognition?
answered
Jan 17
in
Psychology
0
votes
87
views
When was the cognitive perspective developed?
answered
Jan 16
in
Psychology
0
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74
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Where does social learning theory come from?
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Jan 16
in
Psychology
0
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44
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How do cognitive distortions relate to personality?
answered
Jan 15
in
Psychology
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