Recent activity by Alejandra79W

1 answer 30 views

How do the properties of polymer-based 3D printing materials impact the printing process and the resulting printed objects?

answered 5 days ago in Polymer Chemistry

1 answer 20 views

How does the liver metabolize drugs and what factors affect drug metabolism in the body?

answered Feb 20 in Medicinal Chemistry

1 answer 9 views

How does the concentration of heavy metals in soil affect the growth of plants, and what mechanisms can be used to decrease the toxicity of these heavy metals in the environment?

asked Feb 19 in Environmental Chemistry

1 answer 29 views

What is the carbon footprint of a typical household and how can it be reduced through the adoption of environmentally-friendly practices?

answered Feb 18 in Environmental Chemistry

1 answer 25 views

How does the carbon footprint of a household vary with different daily activities, such as transportation, food choices, and energy consumption, and how can individuals reduce their carbon footprint to mitigate their impact on the environment?

answered Feb 18 in Environmental Chemistry

1 answer 36 views

How can we use molecular modeling techniques to design new compounds that target specific skin diseases, such as psoriasis or eczema, and minimize potential side effects?

answered Feb 13 in Medicinal Chemistry

1 answer 38 views

What happens to the equilibrium concentration of products and reactants when the pressure is increased in a system that involves a gaseous reactant and/or product? Use Le Chatelier's principle to explain why.

answered Feb 13 in Chemical reactions

1 answer 33 views

What is the hybridization of the central atom in the inorganic compound PCl5?

answered Feb 13 in Inorganic Chemistry

1 answer 40 views

How can we determine the molecular weight distribution of a polymer using gel permeation chromatography (GPC)?

answered Feb 13 in Polymer Chemistry

1 answer 27 views

How can we design a new chemotherapy drug that targets cancer cells specifically, without harming healthy cells, and how can we ensure that the drug reaches the cancer cells effectively?

asked Feb 12 in Medicinal Chemistry

1 answer 61 views

How can the properties of polymer-based adhesives and sealants be optimized for specific applications such as bonding different types of materials (e.g. metal and plastic) or resisting environmental factors like heat and moisture?

asked Feb 10 in Polymer Chemistry

1 answer 36 views

How can the maximum yield of acetylsalicylic acid be obtained during the preparation process using acetic anhydride and salicylic acid?

asked Feb 7 in Chemical synthesis

1 answer 27 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 11 views

How can chemistry teachers spark interest in the subject among students who perceive it as difficult and uninteresting?

asked Feb 5 in Chemical education

1 answer 51 views

Determine the crystal structure of a compound with the empirical formula C6H12O6, given its X-ray diffraction pattern.

answered Feb 4 in Physical Chemistry

1 answer 62 views

Design a distillation column that separates a mixture of ethanol and water with a 95% ethanol purity and a production rate of 1000 liters per hour. The mixture contains 50% ethanol and 50% water by volume. The distillation column should operate at a pressure of 1 atm and a temperature range of 78-85°C. Assume that the feed enters the column as a saturated liquid and that the overhead product is 90% ethanol, while the bottom product is 5% ethanol. Determine the number of stages required and the reflux ratio for this system.

answered Feb 3 in Chemical engineering

1 answer 93 views

How does the bond length between two hydrogen atoms change as the distance between them increases from 0.5 Å to 2.0 Å, as determined by ab initio calculations of molecular properties using a specific quantum chemical method?

asked Jan 31 in Computational Chemistry

1 answer 98 views

What is the probability of the formation of HCl from H2 and Cl2 gases in a gas-phase reaction at a temperature of 298 K and a pressure of 1 atm, using Monte Carlo simulations?

answered Jan 31 in Computational Chemistry

1 answer 68 views

What is the concentration of lead ions in a water sample collected from a commercial battery manufacturing plant using voltammetry?

answered Jan 31 in Analytical Chemistry

1 answer 52 views

Calculate the enthalpy change when 50 mL of water at 20°C is mixed with 30 mL of ethanol at 30°C. The specific heat capacity of water is 4.18 J g^-1 °C^-1, the specific heat capacity of ethanol is 2.44 J g^-1 °C^-1, and the density of both water and ethanol are 1 g/mL. Assume that the final mixture is at a uniform temperature.

asked Jan 23 in ThermoChemistry

Recent activity by Alejandra79W

Categories