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Answers by AnnetteYbc3
0
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26
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
24
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
22
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
Feb 18
in
Medicinal Chemistry
0
votes
21
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
Feb 18
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
58
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
59
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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