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In a test on the vaporization of water into air in a wetted-wall column, the following data were obtained: Tube diameter= 1.46 cm, Wetted-tube length= 82.7 cm, Air rate to tube at 24oC and 1 atm=720 cm3/s; Temperature of inlet water=25.15 oC, Temperature of outlet water=25.35 oC; Partial pressure of water in inlet air=6.27 torr, and in outlet air= 20.1 torr. DH2O,Air=0.22 cm2/s at 0oC, 1 atm,
(a) Calculate the rate of mass transfer of water in air.(b) Ky for the wetted-wall column.
two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses
considering the process rbl rarr rbg at 1 atm and 686degc in this process it is given that rubidium has a heat of
After 70.82 minutes of surgery the drug began to lose its effect, but more surgery was required. How many moles of the anesthetic must be re-administered to restore the original level of the anesthetic
The only materials on hand are 300 mL of white vinegar (5.00% by mass acetic acid, density = 1.006g/mL) and potassium acetate. How should the student proceed?
A 5.00 g sample of KBr at 25.0°C dissolves in 25.0 mL of water also at 25.0°C. The final equilibrium temperature of the resulting solution is 18.1°C.
in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction
The major isotopes of tungsten are 182W (26.32%), 183W (14.31%), 184W (30.67%), and 186W (28.62%). What is the atomic weight of W?
The Na -glucose symport system of intestinal epithelial cells couples the \"downhill\" transport of two Na ions into the cell to the \"uphill\" transport of glucose, pumping glucose into the cell against its concentration gradient
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water. How many grams of sodium sulfide are formed if 2.00 g of hydrogen sulfide
how many grams of gold would plate on the metal used for the medallion? Explain what you are thinking as you show your calculations.
In a purity check for industrial diamonds, a 11.25 carat (1 carat = 0.2000 g) diamond is heated to 74.21°C and immersed in 27.30 g of water in a constant-pressure calorimeter
Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.95 M B(aq) with 0.95 M HCl(aq).
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