Answers by Alethea98V17

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Consider a system that consists of water and sodium chloride (NaCl) at room temperature and atmospheric pressure. The student is asked to determine the minimum amount of NaCl that needs to dissolve in 100 grams of water in order to form a saturated solution. The student should also calculate the molar solubility of NaCl in the solution.

answered 2 days ago in Physical Chemistry

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A gas is contained in a cylinder at a pressure of 1 atm and a temperature of 25°C. The cylinder is fitted with a piston that can be moved to change the volume. The gas is allowed to expand irreversibly to a final pressure of 0.5 atm, and the temperature is kept constant. Calculate the work done by the system, and determine if the process is endothermic or exothermic.

answered Jan 22 in Physical Chemistry

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How can the door-in-the-face technique be used for social change?

answered Jan 20 in Psychology

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What is the 'paradox of freedom' according to Rollo May?

answered Jan 10 in Psychology

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What is the process of changing something from a gas to a liquid?

answered Jan 7 in Science

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What do you call sound that has a wave frequency higher than the human ear can detect?

answered Jan 6 in Science

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What are the two classifications of factors in the environment that affect organisms?

answered Jan 6 in Science

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