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What is the corrosion current density of iron in a 0.1 M sulfuric acid solution at 25°C, given that the half-cell potential for the iron electrode is -0.44 V and the Tafel slope is 120 mV/decade?

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

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How does the cross-linking density and degree of hydrophilicity affect the swelling behavior of poly(acrylic acid-co-acrylamide) superabsorbent polymers in aqueous environments?

asked Feb 27 in Polymer Chemistry by TheScientist (138k points)

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How does the size and shape of nanoparticles affect their photochemical properties?

asked Feb 24 in PhotoChemistry by LidiaBautist (1.4k points)

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How does the size and shape of graphene nanoparticles affect their electronic and optical properties? And, how can we calculate these properties using quantum chemistry principles?

asked Feb 24 in Quantum Chemistry by AlisiaBarwel (2.1k points)

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What is the magnetic moment of [Fe(H2O)6]+3?

asked Feb 20 in Inorganic Chemistry by RichieRedric (1.9k points)

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What polymers can be used to develop superabsorbent materials with high water retention capacity and how can their properties be optimized for specific applications?

asked Feb 14 in Polymer Chemistry by CDEMargherit (1.7k points)

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How can we design a drug that selectively targets a specific enzyme or receptor without affecting other molecules in the body?

asked Feb 12 in Medicinal Chemistry by MacLgq130601 (2.4k points)

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What is the effect of cooking on the level of pesticide residues in food and how does this impact the potential dangers to human health?

asked Feb 12 in Environmental Chemistry by SanoraMarzan (1.7k points)

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How can the mechanical properties of 3D printed polymer objects be optimized for specific applications, such as automotive part production, through manipulations of polymer chemistry and processing parameters?

asked Feb 10 in Materials Chemistry by LeannaCremea (1.6k points)

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How can molecular docking studies be used to discover new drugs for a specific target protein, and what factors need to be considered in order to ensure drug efficacy and specificity?

asked Feb 5 in Computational Chemistry by DelorasGaise (1.9k points)

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How can computational methods be used to design and predict the properties of supramolecular assemblies formed by organic molecules?

asked Feb 5 in Computational Chemistry by LethaWinfrey (1.7k points)

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What specific steps can be taken by universities and colleges to better prepare chemistry students for their future careers in the chemical industry, where practical skills are just as important as theoretical knowledge?

asked Jan 30 in Chemical education by TracieM73151 (2.5k points)

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A student needs to prepare a solution containing 50 g of ethanol (C2H5OH) dissolved in 250 g of water (H2O) at 25°C. Assuming the heat of mixing for ethanol and water is -5.02 kJ/mol, calculate the heat released or absorbed when the two substances are mixed. Express your answer in kJ.

asked Jan 22 in ThermoChemistry by PalmaYuille (2.1k points)

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A chemical plant has a mixture of ethanol and water with a known composition. The plant wants to separate the mixture using a distillation column. As a chemistry student, design a feasible distillation column that can effectively separate the mixture with the given composition. You need to specify the height, diameter, number of trays, reflux ratio, and other necessary parameters needed for designing the column. You are also required to provide an explanation for the choice of each parameter.

asked Jan 22 in Psychology by HarleyOreill (1.9k points)

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How can attitude change be achieved?

asked Jan 20 in Psychology by JackQ7308746 (2.0k points)

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When considering social change, what is the term for the process of building relationships with other organisations?

asked Jan 20 in Psychology by Lachlan74F5 (2.0k points)

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According to Marcia, which identity status is characterized by active exploration but no commitment?

asked Jan 20 in Psychology by BradCoz53277 (1.9k points)

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What is the identity status of an individual who is currently exploring different identity options?

asked Jan 20 in Psychology by MarianCocket (2.0k points)

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According to the prospect theory, what do people value more: gains or losses?

asked Jan 20 in Psychology by Agustin3989 (1.7k points)

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Who proposed the principle of common fate?

asked Jan 20 in Psychology by YvonneRausch (2.0k points)

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