Questions by MarcyWoolery

0 votes

1 answer 116 views

What is the optimal temperature and duration required for the preparation of p-nitroaniline from aniline and nitric acid to achieve maximum yield?

asked Feb 22 in Chemical synthesis

0 votes

1 answer 79 views

What are the optimal reaction conditions and steps required for the preparation of high-yield phenylalanine from benzyl chloride and ammonia using chemical synthesis techniques?

asked Feb 22 in Chemical synthesis

0 votes

1 answer 80 views

What is the optimal reaction conditions (temperature, pressure, solvent, acid/base catalysis) for the synthesis of high molecular weight polyvinylpyrrolidone using vinylpyrrolidone as the monomer?

asked Feb 21 in Chemical synthesis

0 votes

1 answer 86 views

How does the electronic configuration of transition metal cations influence the stability of their complexes, and how can this be used to predict the stability of inorganic compounds?

asked Feb 20 in Inorganic Chemistry

0 votes

1 answer 141 views

How can the structure-activity relationship (SAR) of antibiotics be optimized to combat drug-resistant bacteria?

asked Feb 11 in Medicinal Chemistry

0 votes

1 answer 144 views

How can the properties of biomaterials be investigated to determine their suitability for use in tissue engineering applications, and how do these properties affect their performance in vivo?

asked Feb 10 in Materials Chemistry

0 votes

1 answer 90 views

How can magnetic resonance spectroscopy be used to determine the purity of a chemical compound? Develop a protocol for using NMR spectroscopy to assess the purity of a sample of 2-butanone.

asked Feb 6 in Physical Chemistry

0 votes

1 answer 99 views

How can chemistry students identify if their teacher has undergone adequate training to effectively teach chemistry?

asked Feb 5 in Chemical education

0 votes

1 answer 209 views

Determine the equilibrium constant (Kc) for the reaction 2SO2(g) + O2(g) ⇌ 2SO3(g), given that at a certain temperature, the initial concentrations of SO2, O2, and SO3 were 0.10 M, 0.20 M, and 0.05 M, respectively, and the reaction was allowed to reach equilibrium.

asked Feb 4 in Chemical thermodynamics

0 votes

1 answer 100 views

Calculate the standard enthalpy change for the phase transition of water from liquid to ice at 0°C, given the following information: The molar heat capacity of liquid water, Cp = 75.3 J/mol K The molar heat capacity of ice, Cp = 36.6 J/mol K The enthalpy of fusion, ΔHfus = 6.01 kJ/mol

asked Feb 3 in Chemical thermodynamics

0 votes

1 answer 182 views

What is the concentration of iron (II) ions in a water sample if the absorbance of the sample at a wavelength of 565 nm is measured to be 0.842 and it was found that a 1 cm cuvette contains 1.25 x 10^-4 moles of iron (II) ions? (The molar absorptivity of iron (II) ions at 565 nm is 1.9 x 10^4 L/mol cm).

asked Jan 30 in Analytical Chemistry

0 votes

1 answer 59 views

Who is associated with zone of proximal development?

asked Jan 20 in Psychology

0 votes

1 answer 99 views

What is the Gestalt theory of perception?

asked Jan 15 in Psychology

0 votes

1 answer 109 views

What is the 'confirmation bias'?

asked Jan 14 in Psychology

0 votes

1 answer 64 views

What is inattentional blindness?

asked Jan 14 in Psychology

0 votes

1 answer 144 views

What is learned helplessness?

asked Jan 14 in Psychology

0 votes

1 answer 54 views

What is circadian rhythm?

asked Jan 14 in Psychology

0 votes

1 answer 54 views

Which forests are found throughout the ocean in temperate and arctic climates?

asked Jan 8 in Science

0 votes

1 answer 71 views

What type of transport requires no energy and occurs when substances move from areas of higher to lower concentration?

asked Jan 8 in Science

0 votes

1 answer 51 views

What is the substance called whenatoms of different elements join together?

asked Jan 7 in Science

Categories