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How does surface tension of a liquid vary with temperature and impurity concentration, and how can it be measured accurately using a drop weight or capillary rise method?

asked Feb 17 in Surface Chemistry by XHQMikel9006 (2.0k points)

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What is the bond dissociation energy of methane (CH4) at standard conditions (25°C and 1 atm)? Given that the enthalpy change of the reaction CH4(g) → C(g) + 4H(g) is 1665 kJ/mol.

asked Feb 18 in ThermoChemistry by MeganAndrzej (2.0k points)

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What are the main factors that affect the biocompatibility of polymer-based biomaterials used in tissue engineering applications? How can these factors be optimized to improve the tissue response and enhance the success of tissue regeneration processes?

asked Feb 17 in Polymer Chemistry by LeannaDoming (1.7k points)

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How does the binding affinity between two proteins affect the success rate of protein-protein interaction inhibitors designed using molecular docking studies?

asked Feb 17 in Computational Chemistry by CalvinHornin (1.6k points)

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What is the bond length between two hydrogen atoms in a hydrogen molecule (H2)? Given the atomic radius of hydrogen as 37 pm and the bond energy of H2 as 436 kJ/mol.

asked Feb 18 in Chemical bonding by KellieDefazi (1.8k points)

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What is the bond length between two carbon atoms in a molecule of ethylene (C2H4), given that the distance between the nuclei of the two carbon atoms is 1.33 Å? Additionally, what is the percent ionic character of the carbon-carbon bond?

asked Feb 18 in Chemical bonding by KrystleFarth (1.7k points)

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What is the bond enthalpy of the carbon-hydrogen bond in methane (CH4) at a room temperature of 25°C?

asked Feb 18 in Chemical bonding by Cameron54A25 (1.9k points)

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What is the bond enthalpy of the O-H bond in a water molecule and what is the energy required to break this bond?

asked Feb 18 in Chemical bonding by FBUToni29827 (2.2k points)

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What are the best polymer-based materials for creating flexible electronic devices with high electrical conductivity, and how can we optimize their synthesis and processing to achieve optimal performance?

asked Feb 17 in Polymer Chemistry by ElissaSegura (1.6k points)

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How does temperature affect the reaction rate of the reaction between sodium thiosulfate and hydrochloric acid, and how can this effect be quantitatively measured?

asked Feb 17 in Chemical kinetics by StefanHartin (1.7k points)

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What is the bond dissociation energy of one of the C-H bonds in a methane (CH4) molecule?

asked Feb 18 in Chemical bonding by ZKLBarbra368 (2.3k points)

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How does the body regulate the synthesis of non-essential amino acids in the process of amino acid metabolism?

asked Feb 17 in BioChemistry by DXGMilagros4 (1.9k points)

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What is the bond dissociation energy of a hydrogen molecule (H2)? Provide the chemical equation for breaking the bond and explain the meaning of the bond dissociation energy value.

asked Feb 18 in Chemical bonding by MVCJohnnie50 (2.1k points)

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How does the binding of transcription factors to DNA regulate gene expression? Provide an explanation using specific examples.

asked Feb 17 in BioChemistry by DeloresQ3217 (1.6k points)

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What is the bond order of a nitrogen molecule (N2) and an oxygen molecule (O2) based on their molecular orbital diagrams and how does this relate to their bond strength and bond length?

asked Feb 18 in Chemical bonding by TracieM73151 (2.5k points)

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How does the binding of specific transcription factors to DNA sequences affect the regulation of gene expression?

asked Feb 17 in BioChemistry by WalterC19362 (2.4k points)

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What is the balanced chemical equation for the synthesis of water from hydrogen and oxygen gas at standard temperature and pressure?

asked Feb 17 in Chemical reactions by WileyBaskerv (2.2k points)

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What is the bond enthalpy of the O-H bond in a molecule of water? Show the calculation using experimental data and explain the significance of the bond enthalpy value obtained.

asked Feb 18 in Chemical bonding by WilburGuerre (2.3k points)

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What is the balanced chemical equation for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine, and what is the theoretical yield of nylon-6,6 that can be produced from a given amount of starting materials?

asked Feb 17 in Chemical synthesis by PhillipPugli (2.1k points)

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What is the bond strength of the molecule H2O? Is it stronger or weaker than the bond strength of CO2? Justify your answer with the relevant theories and experimental data.

asked Feb 18 in Chemical bonding by ZakOleary170 (1.8k points)

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