Recent activity by EloisaPtm353

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How does the reaction rate (measured in moles per second) of the reaction between hydrochloric acid (HCl) and magnesium (Mg) change as the pH of the solution varies from 1 to 7?

asked 3 days ago in Chemical kinetics

1 answer 25 views

How does the photochemical behavior differ between natural and synthetic dyes in terms of their ability to withstand UV radiation?

answered 4 days ago in PhotoChemistry

1 answer 31 views

What is the optimum ratio of p-aminobenzoic acid to ethanol in the preparation of benzocaine with maximum yield?

asked 4 days ago in Chemical synthesis

1 answer 26 views

What is the optimal temperature and reaction time for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine?

answered 4 days ago in Chemical synthesis

1 answer 20 views

What is the most stable geometric structure and electronic configuration of a Fe(CO)5 complex molecule as predicted by ab initio calculations?

answered 4 days ago in Computational Chemistry

1 answer 4 views

What is the most probable mechanism of gas-phase reaction between hydrogen and oxygen using Monte Carlo simulation?

answered 4 days ago in Computational Chemistry

1 answer 28 views

What is the dipole moment of carbon dioxide (CO2) molecule?

asked 6 days ago in Chemical bonding

1 answer 24 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their enzymatic activity and specificity?

asked 6 days ago in Coordination Chemistry

1 answer 26 views

What is the enthalpy change for the combustion reaction of methane gas (CH4) when 2.50 moles of methane are burned in excess oxygen gas under standard conditions?

answered Feb 17 in ThermoChemistry

1 answer 30 views

How do nitrogen and phosphorus contribute to the harmful algal blooms in the nearby water bodies and what strategies can be used to control or prevent their presence?

asked Feb 13 in Environmental Chemistry

1 answer 36 views

What is the role of lipids in the regulation of insulin secretion and how does this relate to the development of type 2 diabetes?

asked Feb 13 in BioChemistry

1 answer 23 views

How does increasing the surface area of a reactant affect the rate of a chemical reaction?

answered Feb 13 in Chemical kinetics

1 answer 31 views

What is the mechanism by which Chlorofluorocarbons (CFCs) and their breakdown products cause the depletion of the ozone layer? How does the presence of CFCs in the atmosphere lead to the formation of the Antarctic ozone hole?

asked Feb 12 in Environmental Chemistry

1 answer 39 views

How can instructors in a chemistry classroom provide more effective support for students with learning disabilities to achieve their academic goals in the subject?

answered Feb 5 in Chemical education

1 answer 75 views

Calculate the standard enthalpy change for the fusion reaction of 50g of ice at 0°C with 450g of liquid water at 25°C. The molar enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/g·°C. Assume there are no heat losses to the surroundings.

answered Feb 3 in Chemical thermodynamics

1 answer 72 views

How can we use Raman spectroscopy to identify the presence of specific compounds in a sample mixture of benzene and toluene in varying concentrations?

answered Jan 30 in Analytical Chemistry

1 answer 61 views

Calculate the enthalpy of solution of sodium chloride (NaCl) when 10 grams of NaCl is dissolved in 100 mL of water assuming that the specific heat capacity of the solution is equal to the specific heat capacity of water (4.18 J/g°C) and the temperature change is negligible.

answered Jan 23 in ThermoChemistry

1 answer 62 views

Calculate the dipole moment of carbon dioxide molecule and determine its polarity.

answered Jan 23 in Chemical bonding

1 answer 62 views

Calculate the bond energy for the O-H bond in a water molecule (H2O), given that the enthalpy change for the combustion of 1 mole of water is -286 kJ/mol and the O=O bond energy is 498 kJ/mol.

answered Jan 23 in Chemical reactions

1 answer 69 views

A student conducted an electrochemical reaction using a copper electrode to reduce a solution containing Ag+ ions. The standard reduction potential for Ag+ is 0.80 V and the standard reduction potential for Cu2+ is 0.34 V. The student measured the cell potential to be 0.62 V. Calculate the overpotential of the reaction and determine if the reduction of Ag+ occurs spontaneously.

answered Jan 22 in ElectroChemistry

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