Recent activity by VioletteM27

1 answer 36 views

What is the percent yield of a reaction if 5.5 grams of product were obtained from the reaction of 7.8 grams of reactant and the theoretical yield of the product is 9.2 grams?

asked Feb 22 in Chemical reactions

1 answer 33 views

What is the most probable product of the gas-phase reaction between methane and chlorine initiated by ultraviolet radiation? Use Monte Carlo simulations to predict the ratio of products formed under different conditions of temperature and pressure.

answered Feb 21 in Computational Chemistry

1 answer 25 views

What is the most efficient and cost-effective process to produce 1 ton of methanol using syngas as the starting material?

asked Feb 21 in Chemical engineering

1 answer 27 views

How does the molecular structure and size of a system affect its quantum transport properties, and what are the underlying chemical principles involved?

asked Feb 21 in Quantum Chemistry

1 answer 26 views

What is the mechanism of Electrophilic addition reaction of water with propene, and what are the products formed?

asked Feb 20 in Organic Chemistry

1 answer 33 views

How does the activation energy of a chemical reaction affect its rate and mechanism?

answered Feb 17 in Quantum Chemistry

1 answer 35 views

How does the surface tension of a biomembrane affect the diffusion of molecules across the membrane?

answered Feb 17 in Surface Chemistry

1 answer 44 views

What is the geometry and polarity of the inorganic molecule sulfur dioxide (SO2)?

answered Feb 14 in Inorganic Chemistry

1 answer 50 views

What is the role of metal ions in the catalytic activity of metalloenzymes and metalloproteins? Provide an example and explain the mechanism of the reaction with the coordination chemistry principles involved.

answered Feb 13 in Coordination Chemistry

1 answer 34 views

How can we design and implement an efficient and sustainable method for the disposal of hazardous industrial waste to minimize its impact on the environment?

asked Feb 12 in Environmental Chemistry

1 answer 43 views

What is the difference between coordination polymers and metal-organic frameworks, and how do their properties differ? Provide examples of each type of compound and explain their potential applications in different fields of chemistry.

asked Feb 12 in Coordination Chemistry

1 answer 64 views

How can the properties of a polymer be optimized during the manufacturing process to achieve desired mechanical, thermal, and chemical properties?

answered Feb 10 in Polymer Chemistry

1 answer 44 views

How can the molecular structure and intermolecular interactions of liquid crystals be optimized to enhance their performance in display technology, specifically in terms of response time, contrast ratio, and viewing angles?

answered Feb 10 in Materials Chemistry

1 answer 30 views

How can the electrical conductivity of semiconductors be manipulated by doping with specific impurities and what is the effect of this on the properties of electronic devices such as transistors?

asked Feb 7 in Materials Chemistry

1 answer 36 views

How can the mechanical and chemical properties of polymer-based biomaterials be optimized to enhance tissue regeneration and functional restoration in case of tissue damage or diseases?

answered Feb 7 in Polymer Chemistry

1 answer 40 views

How can current teaching methods in chemistry be modified to better support students with learning disabilities, specifically dyslexia and dysgraphia, in understanding and retaining the material?

asked Feb 5 in Chemical education

1 answer 38 views

How can chemistry teachers provide adequate support for students with learning disabilities to ensure they have equal opportunities to succeed in the subject?

answered Feb 5 in Chemical education

1 answer 73 views

Here's a precise problem for a chemistry student to solve:Using Hess's Law, calculate the enthalpy change for the reaction where 2 moles of methane (CH4) reacts with 4 moles of oxygen gas (O2) to form 2 moles of carbon dioxide (CO2) and 4 moles of water (H2O), given the following known enthalpy changes:ΔH1 = -890 kJ/mol for the reaction: CH4 + 2O2 → CO2 + 2H2OΔH2 = -394 kJ/mol for the reaction: C + O2 → CO2ΔH3 = -286 kJ/mol for the reaction: H2 + (1/2)O2 → H2O

answered Feb 4 in Chemical reactions

1 answer 118 views

Calculate the surface area of a solid adsorbent material using BET theory, given that the mass of the adsorbent material is 2.5 g, the area occupied by each adsorbed layer is 15 Å², the number of monolayers formed is 4, and the value of the BET constant is 0.05.

asked Feb 3 in Surface Chemistry

1 answer 75 views

Calculate the standard enthalpy change for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH) to form sodium chloride (NaCl) and water (H2O) when 50.0 mL of 1.0 M HCl reacts with 50.0 mL of 1.0 M NaOH at 25°C.

asked Feb 3 in Chemical thermodynamics

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