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Calculate the activation energy for a chemical reaction that has a rate constant of 0.007 mol/L/s at 25°C and 0.059 mol/L/s at 35°C.

asked Jan 23 in Chemical reactions by CheryleKirso (2.1k points)

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Calculate the activation energy and reaction rate constant for the formation of hydrogen gas from the reaction of molecular hydrogen with atomic hydrogen using quantum chemical calculations.

asked Jan 23 in Computational Chemistry by BarneyUyv133 (1.7k points)

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Based on the subtopic The effect of pH on the photochemical reaction rate, a possible precise question for a chemistry student to solve could be:How does the pH level affect the rate of the photochemical reaction between chlorophyll and 1,5-dihydroxynaphthalene?

asked Jan 23 in PhotoChemistry by Ashleigh66X2 (1.9k points)

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Based on the knowledge of biochemistry pertaining to Glycolysis and gluconeogenesis, here's a question for a chemistry student to solve:What are the differences and similarities between glycolysis and gluconeogenesis? Compare and contrast the different pathways, enzymes involved, and energetics of these two important biochemical processes. Provide specific examples to support your answer.

asked Jan 23 in BioChemistry by Ben56061281 (1.4k points)

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Based on the intermolecular forces present in a substance, predict which substance would have a higher boiling point: methane or ethane?

asked Jan 23 in Chemical bonding by EffieQkd6688 (1.7k points)

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Based on our study of Monte Carlo simulations of phase transitions in computational chemistry, calculate the probability of a solid to liquid phase transition at a given temperature for a certain substance using Monte Carlo simulation techniques.

asked Jan 23 in Computational Chemistry by LouiePartrid (1.8k points)

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Balance the following chemical equation: Fe2O3 + CO -> Fe + CO2

asked Jan 22 in Chemical reactions by LinneaMacaul (2.2k points)

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1 answer 61 views

Balance the following chemical equation: Fe + O2 → Fe2O3

asked Jan 22 in Chemical reactions by MarisolWebst (1.8k points)

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Balance the following chemical equation: Fe + O2 -> Fe2O3

asked Jan 22 in Chemical reactions by CorneliusChi (1.6k points)

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Balance the chemical equation for the reaction of sulfur dioxide (SO2) with oxygen (O2) to form sulfur trioxide (SO3).

asked Jan 22 in Chemical reactions by LXJGinger283 (2.2k points)

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1 answer 60 views

Balance the chemical equation for the reaction between potassium permanganate (KMnO4) and sodium sulfite (Na2SO3) in acidic solution.

asked Jan 22 in Chemical reactions by KianCavill6 (1.6k points)

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1 answer 60 views

Balance the chemical equation for the combustion reaction of propane (C3H8) with oxygen gas to produce carbon dioxide gas and water vapor.

asked Jan 22 in Chemical reactions by CaitlynHoran (1.8k points)

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Balance the chemical equation for the combustion of propane (C3H8) in the presence of oxygen (O2) to produce carbon dioxide (CO2) and water (H2O).

asked Jan 22 in Chemical reactions by Vance58E9387 (1.9k points)

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At room temperature, the equilibrium constant (K) for the formation of a complex ion is 8.0 x 10^-5. If the temperature is increased by 10 degrees Celsius, how will the equilibrium constant be affected? Provide a numerical answer and explanation to support your reasoning.

asked Jan 22 in Chemical equilibrium by AltonDurden (2.1k points)

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At a particular temperature and pressure, a mixture of water and ethanol has a vapor pressure of 45 torr. What is the mole fraction of ethanol in the mixture if its total pressure is 760 torr?

asked Jan 22 in Physical Chemistry by IeshaC20996 (1.7k points)

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1 answer 53 views

At 25°C, an electrochemical cell consists of a silver electrode in a 0.010 M AgNO3 solution and a platinum electrode in a 1.0 x 10^-3 M HCl solution. Calculate the resistance of the cell if the distance between the two electrodes is 2.0 cm and the area of each electrode is 5.0 cm^2.

asked Jan 22 in ElectroChemistry by REHJon915716 (1.9k points)

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1 answer 65 views

Assuming you have the equilibrium constant value for a given chemical equation, determine the concentration of products and reactants at equilibrium for the reaction: N2(g) + 3H2(g) ⇌ 2NH3(g); Kc = 6.0 x 10^2 at 500°C. If the initial concentration of N2 is 0.1 M and the initial concentration of H2 is 0.2 M, what is the concentration of NH3 at equilibrium?

asked Jan 22 in Chemical equilibrium by DeangeloMull (1.8k points)

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Assuming you have a mixture of ethanol and water, design a distillation column that can achieve a 95% purity of ethanol in the distillate using the minimum number of plates possible. The feed to the column contains 40% ethanol and 60% water, and the distillate and bottoms products need to be at least 95% pure. The column operates at atmospheric pressure and the feed rate is 100 kg/hr. Also, determine the reflux ratio required to achieve this separation.

asked Jan 22 in Chemical engineering by TorySelwyn2 (2.1k points)

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1 answer 60 views

Assuming the volume of a container at equilibrium is 2 L, what is the new equilibrium concentration of NOCl if the volume is changed to 1 L, given that the initial concentration of NOCl is 0.10 M and the equilibrium constant (Kc) is 0.054?

asked Jan 22 in Chemical equilibrium by Marlene31P52 (2.5k points)

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1 answer 60 views

Assuming that the volume of the system is constant, how will the equilibrium concentration of reactants and products be affected if the temperature is increased for the following reaction: 2 SO2(g) + O2(g) ⇌ 2 SO3(g) (a) Predict the direction of the reaction shift and explain why(b) Predict the effect of the temperature change on the equilibrium value of Kc for the reaction.

asked Jan 22 in Chemical equilibrium by ValeriaStrom (1.7k points)

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