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How many grams of urea ((NH2)2CO) must be added to 333g of water to give a solution with a vapor pressure 2.69 mmHg less than

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How many grams of urea ((NH2)2CO) must be added to 333g of water to give a solution with a vapor pressure 2.69 mmHg less than that of pure water at 30CC ? Round your answer to 3 significant digits. Note: Reference the Vapor pressure of water (H2O) at selected temperatures table for additional information. (NH2)2CO=

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