How many grams of urea [(NH2)2CO] must be added to 450 g of water to give a

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How many grams of urea [(NH2)2CO] must be added to 450 g of water to give a solution with a vapor pressure 2.50 mmHg less than that of pure water at 30°C? (The vapor pressure of water at 30°C is 31.8 mmHg.)
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Chemistry

ISBN: 978-0077274313

10th edition

Authors: Raymond Chang

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