Recent activity by Bernice06378

1 answer 18 views

How do the photochemical properties of R- and S-enantiomers differ from each other and how can these differences be utilized in photodriven processes such as chiral synthesis or resolution?

asked 5 days ago in PhotoChemistry

1 answer 27 views

What is the most efficient catalyst to use in the synthesis of polyethylene terephthalate from terephthalic acid and ethylene glycol, and how does varying the amount of catalyst affect the yield and quality of the final product?

asked 5 days ago in Chemical synthesis

1 answer 18 views

What is the enthalpy of vaporization of water at 100°C if it requires 40.7 kJ of energy to vaporize 1 mole of water?

asked Feb 20 in ThermoChemistry

1 answer 29 views

What is the effect of the molecular weight and polymer chain structure on the electrical conductivity of conductive polymers for use in flexible electronics?

asked Feb 20 in Materials Chemistry

1 answer 22 views

What is the effect of varying the concentration of reactants on the rate of the reaction between sodium thiosulphate and hydrochloric acid, and how does this affect the reaction efficiency?

answered Feb 20 in Chemical kinetics

1 answer 22 views

What is the effect of temperature on the rate and efficiency of the reaction between magnesium and hydrochloric acid in terms of the production of hydrogen gas?

answered Feb 20 in Chemical kinetics

1 answer 7 views

How does the composition of landfill leachate impact the quality of groundwater in the surrounding area, and what are the specific chemicals and pollutants present in the leachate that cause the most significant harm to the groundwater?

asked Feb 18 in Environmental Chemistry

1 answer 36 views

What are the possible consequences of inadequate preparation for chemistry-related careers in terms of job opportunities, salary, and job satisfaction?

asked Feb 13 in Chemical education

1 answer 20 views

How can we design drugs that specifically target and bind to the active site of the enzyme responsible for a particular disease, while avoiding off-target effects on other enzymes or receptors in the body?

asked Feb 12 in Medicinal Chemistry

1 answer 35 views

How can crystallography and knowledge of crystal structures be used to determine the purity of a particular substance?

asked Feb 5 in Physical Chemistry

1 answer 40 views

Determine the bond dissociation energy of methane (CH4) using the following data: Reaction: CH4(g) → C(g) + 4H(g)ΔH°f (kJ/mol): CH4(g) = -74.81C(g) = 715.32H(g) = 218.00Hint: bond dissociation energy can be calculated using the formula ΔH°rxn = Σ (ΔH°f, products) - Σ (ΔH°f, reactants)

asked Feb 4 in ThermoChemistry

1 answer 65 views

How can a chemical engineer develop a cost-effective and efficient process for the production of industrial gases such as nitrogen, oxygen, and argon?

answered Jan 30 in Chemical engineering

1 answer 62 views

How can we determine the concentration of caffeine in a sample of coffee using liquid chromatography?

answered Jan 29 in Analytical Chemistry

1 answer 85 views

How can the concentration of lead in a water sample be quantified using atomic absorption spectroscopy?

answered Jan 29 in Analytical Chemistry

1 answer 64 views

A chemistry student wants to know how the concentration of reactants and products affects the equilibrium constant of a chemical reaction. They decide to investigate the reaction between nitrogen gas and oxygen gas to form nitrogen dioxide gas, and the equilibrium constant Kc for this reaction. What is the relationship between the concentration of reactants and products and the equilibrium constant for this reaction, and how can this be explained by Le Chatelier's principle?

answered Jan 22 in Physical Chemistry

1 answer 79 views

A chemistry student must calculate the boiling point of a solution composed of 10 g of glucose (C6H12O6) dissolved in 100 g of water at 1 atm pressure. The boiling point elevation constant for water (Kb) is equal to 0.512°C/m, and the normal boiling point of pure water is 100°C.

asked Jan 22 in Physical Chemistry

1 answer 113 views

What is the IUPAC name for the organic compound with the molecular formula C6H12O2?

answered Jan 21 in Organic Chemistry

1 answer 60 views

Where was Asch's conformity experiment conducted?

asked Jan 20 in Psychology

1 answer 11 views

Why is meta-analysis useful in psychology research?

asked Jan 20 in Psychology

1 answer 36 views

What is the affective approach to attitudes?

asked Jan 20 in Psychology

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