Recent activity by JurgenJohnst

1 answer 21 views

How does the presence of different functional groups on cations and anions affect the viscosity of ionic liquids at different temperatures?

asked 3 days ago in Physical Chemistry

1 answer 23 views

What is the maximum amount of a gas that can be adsorbed onto the surface of a solid adsorbent at a specific temperature and pressure, according to the Langmuir adsorption isotherm equation? Provide an example utilizing experimental data.

answered 4 days ago in Surface Chemistry

1 answer 19 views

What is the Faraday constant and how can it be calculated from experimental data of electrolysis of nickel (II) sulfate using a current of 2.0 A for a duration of 2.5 hours, where the mass of nickel deposited on the cathode is known to be 0.245 g?

asked 5 days ago in ElectroChemistry

1 answer 23 views

What is the mechanism of the esterification reaction between acetic acid and ethanol, and how does the reaction conditions affect the yield of the product?

answered 5 days ago in Organic Chemistry

1 answer 28 views

What products are formed from the elimination reaction of 2-bromo-2-methylbutane with potassium hydroxide in ethanol at 25°C? Determine the major and minor products, and explain your reasoning.

answered 5 days ago in Organic Chemistry

1 answer 33 views

What is the effect of the chemical structure of various sunscreen agents on their ability to absorb and dissipate UV radiation?

asked 5 days ago in PhotoChemistry

1 answer 27 views

What is the bond order of the nitrogen molecule (N2) based on its molecular orbital diagram?

answered Feb 18 in Chemical bonding

1 answer 33 views

What is the oxidation state of Chromium in Cr2O3?

asked Feb 13 in ElectroChemistry

1 answer 39 views

How do DNA-protein interactions regulate the transcription of genes in biochemical processes? What specific biochemical mechanisms or factors are involved in the regulation of these interactions?

asked Feb 12 in BioChemistry

1 answer 8 views

How can we design drugs that specifically target the angiotensin converting enzyme (ACE) for the treatment of hypertension?

asked Feb 12 in Medicinal Chemistry

1 answer 26 views

How can we design drugs that specifically target bacteria without harming human cells, and what chemical modifications would be necessary to achieve this specificity?

asked Feb 12 in Medicinal Chemistry

1 answer 34 views

How can the prediction of electronic and magnetic properties of molecular magnets using quantum chemistry be used to design more efficient and stable magnetic materials for various technological applications, such as data storage and energy conversion?

asked Feb 10 in Quantum Chemistry

1 answer 23 views

How can the efficiency of the production process of adhesives be increased while maintaining the desired adhesive properties?

answered Feb 7 in Chemical engineering

1 answer 37 views

How can chemistry teachers provide better support and accommodations for students with learning disabilities to effectively learn and understand chemistry concepts and apply them in laboratory experiments?

asked Feb 6 in Chemical education

1 answer 31 views

How can complex chemical concepts be simplified and better understood for students struggling to grasp them?

asked Feb 5 in Chemical education

1 answer 89 views

What effects do changes in pH have on the activity of the enzyme catalase during the breakdown of hydrogen peroxide?

asked Jan 31 in BioChemistry

1 answer 53 views

Calculate the expected boiling point of lithium fluoride (LiF) using its experimental melting point and the heat of fusion, assuming it behaves ideally.

asked Jan 23 in Inorganic Chemistry

1 answer 58 views

A student wishes to prepare a buffer solution by adding 0.20 moles of acetic acid (Ka = 1.8 x 10^-5) and 0.20 moles of sodium acetate in 1 liter of solution. The student adds 0.05 moles of hydrochloric acid (HCl) to the solution. Calculate the effect of adding the buffer on the equilibrium position of the acid-base reaction and determine the new pH of the solution.

answered Jan 22 in Chemical equilibrium

1 answer 8 views

A cylinder with a volume of 2.5 L contains 1.5 moles of an ideal gas at a pressure of 5 atm. The gas is allowed to expand isothermally against a constant external pressure of 1 atm until the volume doubles. Calculate the work done by the gas during the expansion process.

answered Jan 22 in Physical Chemistry

1 answer 67 views

What is the oxidation state of the carbon atom in an ethanol molecule after it undergoes oxidation?

asked Jan 21 in Organic Chemistry

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