Compute number of grams of urea that must be added to water
Calculate the number of grams of urea that must be added to 150 g water to give solution whose vapor pressure is 2.5 mmHg less than that of pure water at 40 degrees C (vapor pressure of H2O at 40 degrees C is 55.34 mmHg).
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A circular loop of conducting wire measuring 12cm in diameter is placed into a .60-T magnetic field. What is the magnetic flux through the loop:
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Common brass is a copper and zinc alloy containing 37.0% zinc by mass and having a density of 8.48 g/cm3 A fitting composed of common brass has a total volume of 113.0cm3. How many atoms of zinc does the fitting contain?
Calculate the number of grams of urea that must be added to 150 g water to give solution whose vapor pressure is 2.5 mmHg less than that of pure water at 40 degrees C.
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If 50.0ml of a solution containing 0.01370g of the stretomycin has an osmotic pressure of 8.72mmHg at 23.6 degrees C, what is the molecular weight of the antibiotic?
White light containing wavelengths from 400 nm to 750 nm falls on a grating with 6000 lines/cm. How wide is the first-order spectrum on a screen 2.70 m away?
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