Recent activity by ChristieNobl

1 answer 82 views

What is the mechanism of the Pinacol-Pinacolone Rearrangement and provide an example of the reaction?

asked Feb 22 in Organic Chemistry

1 answer 73 views

What is the effect of the length of a conjugated polymer chain on its electronic and optical properties, and how can quantum chemistry calculations be used to predict and explain these effects?

asked Feb 20 in Quantum Chemistry

1 answer 82 views

How does the carbon footprint of a particular industry or activity impact the environment and what steps can be taken to reduce it?

answered Feb 18 in Environmental Chemistry

1 answer 84 views

What are the potential consequences of inadequate preparation for chemistry-related careers? How can this problem be addressed to ensure that chemistry graduates are fully prepared for their chosen career paths?

answered Feb 14 in Chemical education

1 answer 109 views

What is the role of metal ions in the catalytic activity of metalloenzymes and metalloproteins, and how does their coordination chemistry affect their function?

asked Feb 13 in Coordination Chemistry

1 answer 126 views

What is the oxidation state of chlorine in HClO4 molecule?

asked Feb 13 in Chemical reactions

1 answer 105 views

Using retrosynthesis, propose a viable pathway for the synthesis of Ibuprofen from readily available starting materials.

asked Feb 13 in Organic Chemistry

1 answer 124 views

How does the deficiency of the enzyme cystathionine beta-synthase (CBS) affect the metabolism of methionine and homocysteine in the body? And how can this condition lead to inherited diseases like homocystinuria in humans?

answered Feb 12 in BioChemistry

1 answer 117 views

How does the coordination chemistry of metalloproteins contribute to the catalytic activity of enzymes? Illustrate with specific examples from the literature.

asked Feb 12 in Coordination Chemistry

1 answer 80 views

How can the mechanical strength and toughness of 3D printed polymer structures be improved without sacrificing their dimensional accuracy and surface finish?

asked Feb 10 in Polymer Chemistry

1 answer 135 views

What is the specific coordination environment and reaction mechanism of the metal ion in the active site of the metalloenzyme, carbonic anhydrase? Provide a detailed analysis of the coordination bonds formed between the metal ion and amino acid residues within the enzyme.

answered Jan 31 in Coordination Chemistry

1 answer 148 views

How can a chemistry student overcome the obstacle of limited availability of chemistry-related internships and job opportunities during their undergraduate studies to gain real-world experience?

answered Jan 30 in Chemical education

1 answer 198 views

What are the most effective study strategies for a chemistry student to overcome inadequate preparation for their chemistry exams?

answered Jan 30 in Chemical education

1 answer 150 views

Using mass spectrometry, analyze and identify the unknown compound given to you by comparing its mass spectrum with the known compounds in the database. What is the molecular weight and functional group of the unknown compound?

answered Jan 30 in Analytical Chemistry

1 answer 93 views

Calculate the enthalpy change for the following chemical reaction: 2NH3(g) + 3O2(g) → 2NO(g) + 3H2O(l) Given the following enthalpy values: ΔH°f (NH3) = −46.11 kJ/molΔH°f (O2) = 0 kJ/molΔH°f (NO) = 90.3 kJ/molΔH°f (H2O) = −285.8 kJ/mol

answered Jan 23 in Chemical thermodynamics

1 answer 77 views

A chemistry student wants to buffer a solution with a pH of 4.5. The student adds 0.1 mol of a weak acid buffer to 0.1 mol of a conjugate base. Taking the pKa value of the buffer into consideration, determine how much stronger an acid in the same buffer system would need to be added to the solution to shift the pH from 4.5 to 4.0, assuming temperature and pressure are constant.

answered Jan 22 in Chemical equilibrium

1 answer 101 views

A chemistry student is given the following information: A galvanic cell is set up consisting of a copper electrode in a copper (II) ion solution connected by a salt bridge to a silver electrode in a silver ion solution. The concentration of the copper (II) solution is 0.10 M and the concentration of the silver ion solution is 0.025 M. The measured potential of the cell is 0.66 V. Calculate the resistance of this electrochemical cell.

asked Jan 22 in ElectroChemistry

1 answer 60 views

When can stereotypes be useful?

answered Jan 20 in Psychology

1 answer 136 views

Who proposed the theory of learned helplessness?

answered Jan 20 in Psychology

1 answer 102 views

Where did Joseph Wolpe develop systematic desensitisation?

asked Jan 20 in Psychology

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