Recent activity by BradCrandall

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What is the effect on the solubility of AgCl in water if the concentration of NaCl is increased? Calculate the new solubility of AgCl when the concentration of NaCl is increased from 0.1 M to 0.3 M. Given that the Ksp of AgCl is 1.77 x 10^-10.

asked Feb 20 in Chemical equilibrium

1 answer 21 views

What is the effect of varying the cross-linking density on the swelling behavior of a superabsorbent polymer?

answered Feb 20 in Polymer Chemistry

1 answer 23 views

What is the effect of temperature on the viscosity of 1-ethyl-3-methylimidazolium ethylsulfate ([EMIM][EtSO4]) ionic liquid?

asked Feb 20 in Physical Chemistry

1 answer 34 views

How does the concentration of sulfur dioxide emissions from a nearby coal-fired power plant affect the rate and severity of acid deposition in a local forest ecosystem?

answered Feb 19 in Environmental Chemistry

1 answer 33 views

What is the effect of the chemical structure and composition of photovoltaic materials on their ability to convert light energy to electrical energy?

answered Feb 18 in PhotoChemistry

1 answer 22 views

What is the balanced chemical equation for the combustion of propane (C3H8)?

answered Feb 17 in Chemical reactions

1 answer 33 views

What is the enthalpy change for the combustion reaction of methane gas (CH4) when 2.50 moles of methane are burned in excess oxygen gas under standard conditions?

answered Feb 17 in ThermoChemistry

1 answer 38 views

What is the balanced chemical equation for the combustion of methane gas (CH4) with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O)?

answered Feb 17 in Chemical reactions

1 answer 33 views

How does the increase in temperature affect the adsorption of gases on solid surfaces, specifically in terms of the adsorption isotherm and the activation energy of the adsorption process?

asked Feb 17 in Physical Chemistry

1 answer 66 views

What is the coordination geometry, metal ion oxidation state, and ligand binding sites of zinc in the active site of carbonic anhydrase? How do these structural features contribute to the enzyme's catalytic activity?

asked Feb 13 in Coordination Chemistry

1 answer 90 views

What is the mechanism of ligand substitution reactions in coordination chemistry and how does the substitution of a ligand affect the properties of a coordination complex? Provide examples to support your answer.

answered Feb 13 in Coordination Chemistry

1 answer 97 views

How can the synthesis of biodegradable polymers be optimized to enhance their degradation rate while maintaining their mechanical properties?

answered Feb 11 in Polymer Chemistry

1 answer 75 views

How can the surface chemistry of adhesives and coatings be tailored to improve their bonding properties to different substrates?

asked Feb 11 in Surface Chemistry

1 answer 41 views

How can the coordination compound [Co(NH3)6]Cl3 be synthesized and characterized in the laboratory?

answered Feb 6 in Coordination Chemistry

1 answer 43 views

How can chemistry teachers provide better support for students with learning disabilities in the classroom to ensure they have equal access to learning opportunities and achieve success in the subject?

asked Feb 5 in Chemical education

1 answer 48 views

How can different types of soil contaminants affect the absorption of nutrients by plants, and what are the potential consequences for agricultural productivity and food supply?

asked Feb 5 in Environmental Chemistry

1 answer 39 views

How can chemistry students be exposed to current research in chemistry despite the limited resources and opportunities available at their institution?

answered Feb 4 in Chemical education

1 answer 5.9k views

Consider the metalloprotein hemoglobin, which has four heme groups each coordinated to a single iron ion. Suppose that ferrous iron in the heme group of hemoglobin is oxidized to ferric state by reacting with hydrogen peroxide. Calculate the number of hydrogen peroxide molecules needed to oxidize all the iron ions of hemoglobin in a human body that has a total of 5 liters of blood, assuming the concentration of hemoglobin in blood is 15 grams per liter.

answered Feb 3 in Coordination Chemistry

1 answer 55 views

Calculate the standard enthalpy change for the melting of 10 grams of ice at -10°C to liquid water at 20°C, given the specific heat capacity of water is 4.18 J/g°C and the enthalpy of fusion of water is 6.01 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 67 views

How does changing the concentration of the reactants affect the rate of the chemical reaction and ultimately the profitability of the reaction?

answered Feb 3 in Chemical kinetics

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