Answers by CoreyHawdon4

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Design a process for the purification of 500 grams of crude aspirin containing impurities such as acetic acid and sulfuric acid. The final product must have a purity of at least 99.5%. Describe the steps involved in the purification process, including the necessary equipment, reagents, and conditions for each step. Also, calculate the percent yield of the final product based on the initial mass of crude aspirin.

answered 6 days ago in Chemical engineering

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Calculate the enthalpy change for the combustion of methane at standard conditions, given the following information:- The enthalpy of formation of CO2(g) is -393.5 kJ/mol.- The enthalpy of formation of H2O(g) is -241.8 kJ/mol.- The enthalpy of formation of CH4(g) is -74.8 kJ/mol.

answered Jan 23 in Chemical reactions

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Assuming a chemical equilibrium reaction aA + bB ⇌ cC + dD, with initial concentrations of [A] = 0.2 M, [B] = 0.3 M, [C] = 0 M, and [D] = 0 M at 25°C, what will be the new equilibrium concentration of [B] if the volume of the container is decreased to half the original volume?

answered Jan 22 in Chemical equilibrium

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What is the purpose of the Raven's Progressive Matrices test?

answered Jan 20 in Psychology

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What are the psychological principles underlying reinforcement learning?

answered Jan 20 in Psychology

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What is the criticism-defensiveness pattern?

answered Jan 16 in Psychology

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What is the most effective treatment for OCD?

answered Jan 15 in Psychology

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What is chunking?

answered Jan 14 in Psychology

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What is the term for a state of matter that yields to sideways or shearing forces?

answered Jan 7 in Science

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In science, what is defined as the transfer of energy from a vibrating object in waves that travel through matter?

answered Dec 31, 2024 in Science

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Vertical layering is an important feature of the terrestrial type of what kind of community?

answered Dec 27, 2024 in Science

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