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two sedimentation tanks operate in parallel. The combined flow to the two tanks is .1 m^3/s. the depth of each tank is 2 m and each has a detention time of 4 h. what is the surface area of each tank and what is the overflow rate of each tank in m^3/d*m^2?
A student placed 18.0 grmsof glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100 gm. mark on the neck of the flask.
What velocity would an electron 9.11*10^-31 kg need for its de Broglie wavelength to be that of red light 745nm ?
A gaseous mixture of and has a density of 1.104 at 445 and 300 . What is the mole percent in the mixture?
A specific brand of gourmet chocolate candy contains 7.00g of dietary fat in each 22.7-g piece. How many kilograms of dietary fat are in a box containing 2.00lb of candy?
What mass of sucrose should be combined with 521 of water to make a solution with an osmotic pressure of 8.15 at 285 ? (Assume the density of the solution to be equal to the density of the solvent.)
Dibenzoylmethane is not a methyl ketone, but it gives a positive result in the iodoform test when treated with NaOH and I2. Explain this result.
Put in order the following molecules in terms of the Permeability of the molecule across a membrane by simple diffusion at pH 7.
What are the initial and final pH's? What would be the pH if the same amount of HCl were added to the 125 mL of pure water? The Ka of acetic acid is 1.8*10^-5
The vapor pressure for methanol and ethanol at 50 C is 406 and 222 Torr, respectively. Calculate the total vapor pressure of a mixture at 50 C that contains 0.2 mol of methanol and 0.1 mol of ethanol.
if 2 mole of N2 and 5 mole of H2 in a closed container initially at STP react, calculate the final pressure in the flask at 0C.
A 20.0 mL sample of gastric juice was taken from a patient suspected of having hypochloridia (low stomach acid). The sample was taken several hours after a meal so there was no ingested food or drink
A 10.3 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
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