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0
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24
views
How does the reaction rate of a chemical reaction change when the stoichiometric ratio of the reactants is altered?
answered
1 day
ago
in
Chemical kinetics
0
votes
23
views
What is the optimal reaction conditions (temperature and time) for the preparation of benzocaine from p-aminobenzoic acid and ethanol, and how do these conditions affect the yield and purity of the final product?
answered
3 days
ago
in
Chemical synthesis
0
votes
21
views
How do the photochemical properties of gold nanoparticles differ from those of silver nanoparticles when exposed to UV radiation in a solution containing a reducing agent?
answered
3 days
ago
in
PhotoChemistry
0
votes
33
views
How does the co-administration of Warfarin and Ibuprofen affect the anticoagulant effects of Warfarin?
answered
6 days
ago
in
Medicinal Chemistry
0
votes
20
views
What is the chemical equation for the combustion of propane (C3H8) and how much oxygen (O2) is required for the complete combustion reaction?
answered
6 days
ago
in
Chemical reactions
0
votes
40
views
How can the chemical industry reduce its environmental impact and promote sustainability in their projects, while still meeting economic and production goals?
answered
Feb 6
in
Environmental Chemistry
0
votes
32
views
Calculate the standard enthalpy change for the vaporization of 1 mole of water at 100°C, given that the enthalpy of fusion of water is 6.01 kJ/mol and the enthalpy of vaporization of water is 40.7 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
67
views
How can we determine the composition of a mixture containing various compounds, using gas chromatography?
answered
Jan 29
in
Analytical Chemistry
0
votes
59
views
Calculate the heat of mixing when 25 grams of ethanol is added to 75 grams of water at 25°C. The heat of mixing of ethanol in water is -4.4 kJ/mol. Assume the densities of ethanol and water to be 0.789 g/mL and 1 g/mL, respectively, and the specific heat of the mixture to be 4.184 J/g°C.
answered
Jan 23
in
ThermoChemistry
0
votes
45
views
Calculate the enthalpy of adsorption for a reaction where 2 moles of nitrogen gas (N2) are adsorbed on the surface of a solid at -100°C. Given that the partial pressure of N2 in the gas phase is 0.2 atm and the equilibrium constant for adsorption of N2 at this temperature is 2.5 x 10^3. Assume the adsorption is a reversible process and that the ideal gas law can be used to calculate partial pressures.
answered
Jan 23
in
ThermoChemistry
0
votes
57
views
Calculate the electronegativity difference between carbon and hydrogen in a methane (CH4) molecule using the Pauling scale of electronegativity.
answered
Jan 23
in
Chemical bonding
0
votes
54
views
A solution contains 0.1 M of an unknown ion X. The electrode potential of this ion X is measured to be +0.60 V versus the standard hydrogen electrode (SHE). Calculate the concentration of ion X in the solution using electrochemical methods.
answered
Jan 22
in
ElectroChemistry
0
votes
36
views
Where does the cognitive motivational theory suggest that conflict arises?
answered
Jan 20
in
Psychology
0
votes
47
views
Where did cognitive-behavioural therapy CBT originate?
answered
Jan 17
in
Psychology
0
votes
48
views
What are the strengths of the multimodal therapy approach?
answered
Jan 16
in
Psychology
0
votes
51
views
How does cognitive-behavioural therapy (CBT) treat anxiety disorders?
answered
Jan 15
in
Psychology
0
votes
31
views
When do we perceive illusions?
answered
Jan 15
in
Psychology
0
votes
41
views
What is the difference between primary and secondary reinforcers?
answered
Jan 15
in
Psychology
0
votes
40
views
What is the role of the prefrontal cortex in sleep?
answered
Jan 14
in
Psychology
0
votes
30
views
What is the difference between REM and NREM sleep?
answered
Jan 13
in
Psychology
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