Recent activity by CecileODrisc

1 answer 16 views

What is the predicted bond angle in a water molecule and how does it relate to the molecule's unique physical and chemical properties?

asked 3 days ago in Chemical bonding

1 answer 24 views

How does the polarity of the solvent affect the photochemical reaction rate for a specific photochemical reaction?

asked 3 days ago in PhotoChemistry

1 answer 17 views

What is the most cost-effective and efficient design for a hydrogen fuel production system, taking into account the energy input, byproduct management, and scalability of the production process?

asked 4 days ago in Chemical engineering

1 answer 19 views

How does the concentration of the catalyst affect the reaction rate of the decomposition of hydrogen peroxide?

answered Feb 18 in Chemical kinetics

1 answer 16 views

What effect does the addition of a catalyst have on the reaction rate of the decomposition of hydrogen peroxide in the presence of yeast?

answered Feb 17 in Chemical kinetics

1 answer 45 views

What innovative approaches can be taken in developing new treatments for skin diseases using principles of medicinal chemistry?

asked Feb 13 in Medicinal Chemistry

1 answer 38 views

What is the effect of changing the concentration of one reactant on the overall reaction rate of a second-order chemical reaction?

answered Feb 13 in Chemical kinetics

1 answer 49 views

What is the effect of fiber orientation on the mechanical properties of carbon fiber-reinforced polymer composites used in the aerospace industry?

asked Feb 13 in Polymer Chemistry

1 answer 52 views

How does the surface chemistry of detergents and cleaning agents allow them to remove dirt and stains from surfaces? What specific chemical processes and interactions occur between the cleaning agents and the dirt/stains on a molecular level?

asked Feb 12 in Surface Chemistry

1 answer 37 views

How can we design a new drug molecule that selectively targets the immune cells responsible for the development of autoimmune diseases and avoids interfering with healthy cells?

asked Feb 12 in Medicinal Chemistry

1 answer 27 views

How can the knowledge of the molecular structure of a specific respiratory disease target (e.g. a protein involved in the disease pathway) be utilized to design and develop a novel drug or therapy that effectively treats the disease while minimizing side effects?

answered Feb 7 in Medicinal Chemistry

1 answer 11 views

How can the electronic and optical properties of silver nanoparticles be calculated using quantum chemistry methods?

answered Feb 7 in Quantum Chemistry

1 answer 35 views

How can the chemical reaction involved in the synthesis of a particular pharmaceutical drug be optimized to increase yield and minimize waste products?

asked Feb 6 in Chemical engineering

1 answer 28 views

How can practical applications of chemistry be better incorporated into the curriculum to improve students' understanding and appreciation of the subject?

asked Feb 5 in Chemical education

1 answer 27 views

Calculate the standard enthalpy change of the oxidation of hydrogen gas (H2) to form water (H2O) at 298 K, given that the standard enthalpy of formation of water is -285.8 kJ/mol and the bond dissociation enthalpy of the H-H bond is 436 kJ/mol.

answered Feb 3 in ThermoChemistry

1 answer 69 views

What is the structure of an unknown compound with molecular formula C5H10O2 that exhibits singlets in its 1H-NMR spectrum at δ 1.1, 2.3 and 3.7 ppm and a doublet at δ 2.9 ppm?

answered Jan 31 in Analytical Chemistry

1 answer 81 views

How effective are the current environmental regulations in reducing air pollution from industrial sources in a specific city or region, and what strategies can be suggested to further improve their effectiveness?

asked Jan 31 in Environmental Chemistry

1 answer 58 views

What is the difference between an ether and an epoxide in terms of their structures and reactivity with nucleophiles? Provide examples of each and explain how their unique structures affect their reactivity.

answered Jan 31 in Organic Chemistry

1 answer 62 views

How can we mitigate the impact of acid mine drainage on water quality using chemical treatments?

answered Jan 30 in Environmental Chemistry

1 answer 58 views

A chemistry student needs to calculate the heat of hydration for the reaction between anhydrous magnesium chloride (MgCl2) and water (H2O) using the following data: the enthalpy change for the dissolution of anhydrous magnesium chloride in water is -63.3 kJ/mol, and the enthalpy change for the hydration of magnesium ions (Mg2+) and chloride ions (Cl-) is -192 kJ/mol and -131 kJ/mol, respectively. Calculate the overall heat of hydration (in kJ/mol) for the reaction: MgCl2(s) + 6H2O(l) → MgCl2.6H2O(s)

asked Jan 22 in ThermoChemistry

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