Recent activity by CharmainRose

1 answer 35 views

What is the quantum mechanical explanation behind the formation of hydrogen bonds between water molecules and how can this be simulated accurately using computational chemistry methods?

asked Feb 22 in Computational Chemistry

1 answer 32 views

How does the presence of surfactants in detergents affect the surface tension of water and its ability to remove dirt and stains from clothes?

answered Feb 22 in Surface Chemistry

1 answer 29 views

What is the effect of temperature and polarity on the orientational ordering of nematic liquid crystals?

asked Feb 22 in Physical Chemistry

1 answer 30 views

What is the most effective method for the analysis and detection of pesticide residues in food samples and how can this information be used to minimize the impact of these residues on human health?

answered Feb 21 in Environmental Chemistry

1 answer 33 views

What is the maximum amount of NaCl that can dissolve in 100 mL of water at 25°C, given that the solubility of NaCl in water is 36 g/100 mL at this temperature?

asked Feb 20 in Chemical bonding

1 answer 33 views

How do the electronic and optical properties of graphene and other 2D materials vary with changes in temperature and doping concentration?

answered Feb 20 in Quantum Chemistry

1 answer 29 views

What is the effect of substrate concentration on the rate of an enzyme-catalyzed reaction and how does inhibition affect this relationship?

answered Feb 19 in BioChemistry

1 answer 38 views

How does the binding affinity between DNA and transcription factors affect gene expression regulation?

answered Feb 17 in BioChemistry

1 answer 26 views

How does the amount of activated carbon affect the adsorption of pollutants in wastewater treatment plants?

answered Feb 17 in Surface Chemistry

1 answer 24 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 36 views

How does the enzyme nitrogenase reduce atmospheric nitrogen to ammonia during nitrogen fixation, and what are the factors that influence its activity?

answered Feb 14 in BioChemistry

1 answer 58 views

What are the common challenges that students face while attempting to understand the concepts of quantum mechanics in chemistry and what are the effective strategies to overcome these difficulties?

answered Feb 12 in Chemical education

1 answer 108 views

How can the process for the production of commercial-grade ammonia be optimized to increase yield and decrease production costs?

asked Feb 10 in Chemical engineering

1 answer 41 views

How can the potential environmental impact of radioactive waste disposal be minimized through the use of chemical engineering techniques such as vitrification and ion exchange?

asked Feb 10 in Environmental Chemistry

1 answer 50 views

How can the chemical properties of certain compounds be modified to enhance their effectiveness in treating inflammatory bowel diseases such as Crohn's disease and ulcerative colitis?

asked Feb 6 in Medicinal Chemistry

1 answer 40 views

How can chemistry educators promote diversity and inclusivity in the classroom and laboratory to encourage underrepresented students to pursue careers in chemistry?

asked Feb 4 in Chemical education

1 answer 80 views

Determine the oxidation state of the chromium atom in the compound potassium dichromate (K2Cr2O7).

answered Feb 4 in Inorganic Chemistry

1 answer 75 views

Calculate the total resistance of an electrochemical cell consisting of two half-cells where one half-cell has a copper electrode submerged in a 0.5 M CuSO4 solution, and the other half-cell has a zinc electrode submerged in a 1.0 M ZnSO4 solution. The copper electrode is connected to the zinc electrode through a salt bridge. The resistance of the salt bridge is 22 ohms, and the resistance of the copper and zinc electrodes are negligible.

asked Feb 3 in ElectroChemistry

1 answer 86 views

Calculate the resistance of an electrochemical cell constructed by using a copper electrode in a 1M copper (II) sulfate solution and a zinc electrode in a 1M zinc sulfate solution. The measured potential difference of the cell is 1.45 volts. The area of each electrode is 10cm² and the length of wire connecting the electrodes is 30cm with a cross-sectional area of 1 mm². The conductivity of copper (II) sulfate and zinc sulfate solutions at the given concentration is 98.3% and 89.9% respectively. What is the resistance (in ohms) of the electrochemical cell?

answered Feb 3 in ElectroChemistry

1 answer 84 views

What are some effective strategies for incorporating technology into organic chemistry lessons that enhance students' learning experiences and understanding of the subject matter?

asked Jan 30 in Chemical education

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