Calculate the molar heat of vaporization of liquid nitrogen
40 g of liquid Nitrogen (boiling point = -190 C) is poured into a styrofoam cup containing 200 g of water at 50.5 C. Calculate the molar heat of vaporization of liquid Nitrogen if the final temperature of water is 41 C?
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Assume that patient blood lead levels are 0.590. What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream?
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75.0 g of H2O at 23.0 oC is added to 100.0 g of H2O at 67.5 oC. What is the temperature of the resulting mixture?
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A full-revolution press has 100rpm flywheel rotation. the press is equipped with 2-hand trip devices mounted on the machine at a distance of 20 inches from the point of operation. how many engagement points on the flywheel would be necessary
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How many kilojoules of heat are absorbed when 40.4g of MgO(s) is decomposed into Mg(s) and O2(g) at constant pressure?
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