Recent activity by Annie8242047

1 answer 29 views

What is the effect of varying the concentration of reactants on the reaction rate and efficiency of the reaction between hydrochloric acid and sodium thiosulphate?

asked Feb 22 in Chemical kinetics

1 answer 38 views

What is the effect of pH on the stability of colloidal solutions? Provide experimental evidence to support your answer.

asked Feb 22 in Physical Chemistry

1 answer 42 views

What are the factors that influence the photochemical properties of transition metal complexes and how can they be manipulated to enhance the efficiency of these complexes in applications such as photocatalysis and solar cells?

answered Feb 14 in PhotoChemistry

1 answer 36 views

How does the process of protein synthesis occur in living organisms, and what specific biochemical factors influence the folding and functionality of proteins within cells?

answered Feb 14 in BioChemistry

1 answer 53 views

Which metal will displace copper from copper sulfate solution - zinc or iron? Provide the balanced chemical equation for this single replacement reaction.

answered Feb 13 in Chemical reactions

1 answer 55 views

How can the synthesis of zeolites be improved to achieve a higher yield and a more precise control over their physical and chemical properties?

answered Feb 13 in Materials Chemistry

1 answer 82 views

How does exposure to nitrogen oxides and sulfur dioxide in polluted air affect respiratory health in humans?

asked Feb 13 in Environmental Chemistry

1 answer 30 views

How to design a process for the production of pure nitrogen gas on an industrial scale using pressure swing adsorption (PSA) technology?

asked Feb 12 in Chemical engineering

1 answer 38 views

What are the key factors that need to be considered when designing a polymer-based biomaterial for tissue engineering applications, and how do these factors affect the performance and biocompatibility of the material?

answered Feb 12 in Polymer Chemistry

1 answer 37 views

How can the photochemical properties of photovoltaic materials be optimized to improve the efficiency of solar cells?

answered Feb 10 in PhotoChemistry

1 answer 44 views

How can the electrical conductivity of polymer-based electronic materials be optimized for use in high-performance electronics?

asked Feb 7 in Polymer Chemistry

1 answer 34 views

How can the efficiency of the emulsification process in the production of cosmetics be improved using chemical engineering principles?

asked Feb 7 in Chemical engineering

1 answer 36 views

How can the design of a system for the production of cosmetics be optimized to improve the efficiency of the chemical reactions, reduce waste generation, and maximize the product yield?

asked Feb 7 in Chemical engineering

1 answer 37 views

How can the chemical structure of new drug candidates be optimized for efficacy in treating autoimmune diseases while minimizing toxicity and side effects?

asked Feb 6 in Medicinal Chemistry

1 answer 41 views

How can the Catalytic polymerization of propylene monomer be optimized in order to produce high-quality polypropylene with desirable properties such as stiffness, impact resistance, and transparency?

answered Feb 6 in Chemical synthesis

1 answer 36 views

Here's a precise problem for a chemistry student to solve related to designing a heat exchanger for a specific process:A chemical plant produces a product with a flow rate of 500 liters per hour, and it needs to be cooled from its initial temperature of 120°C to its final temperature of 80°C before it can be packaged for shipment. The cooling medium that will be used is water, which is available at a flow rate of 400 liters per hour and an initial temperature of 20°C. Design a heat exchanger to cool the product and determine the required surface area of the heat exchanger if the overall heat transfer coefficient is 500 W/m2K.

asked Feb 4 in Chemical engineering

1 answer 42 views

What is the concentration of chloride ions in a 0.1 M solution of sodium chloride using a chloride ion-selective electrode?

asked Jan 30 in Analytical Chemistry

1 answer 70 views

How can we determine the concentration of caffeine in a particular brand of coffee by using liquid chromatography?

answered Jan 29 in Analytical Chemistry

1 answer 78 views

Calculate the heat released when 10.0 g of solid NaOH at 25.0°C is dissolved in 200.0 mL of water also at 25.0°C, given that the heat of crystallization of NaOH is 44.5 kJ/mol and the density of water is 1.00 g/mL.

answered Jan 23 in ThermoChemistry

1 answer 100 views

Can you give an example of how the macrosystem influences an individual?

asked Jan 20 in Psychology

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