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An aquifer has a hydraulic gradient of 0.00086, a hydraulic conductivity of 200m*day^-1 and a porosity of 0.23. A chemical with a retardation factor of 2.3 contaminates the aquifer. What is the linear velocity of the contaminant? How long will it take for the contaminant to travel 100m in the aquifer?
A compound called pyrene has the empirical formula C8H5 . When 4.04 g of pyrene is dissolved in 10.00 g of benzene, the boiling point of the solution is 85.1°C.
Identify one conjugate acid base pair in the reaction of HBA with H2O to produce BA? and H3O+.
draw the form/structural formula that predominates after deprotonation with any appropriate formal charges and hydrogen atoms.
A 0.481 gram sample of an unknown acid (HX) required 28.95 mL of 0.2103 M NaOH for neutralization to the phenolphthalein end point. What is the molar mass of the acid
If the salt bridge consists of a gel containing approximately 1 M KNO3, will the NO3-ions flow into the right hand (Cu, Cu2+) or left hand (Al, Al3+) half-cell when the circuit is completed
The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?
What is the volume of .885 M hydrochloric acid required to react with (a) 25 mL of .288 M aqueous ammonia (b) 10 g of sodium hydroxide (c) 25 mL of a solution
Icebergs in the North Atlantic present hazards to shipping, causing the length of shipping routes to increase by about 30 percent during the iceberg season. Attempts to destroy icebergs include planting explosives, bombing, torpedoing, shelling, r..
Bill's recipe for onion soup calls for 4.0 lb of thinly slicedonions. If an onion has an average massof 115 g, how many onions does Bill need
a. if the hexapeptide in question 7 is dephosphorylated then aminoethylated ae at cys and cleaved by trypsin what
Why does the same amount of liquid when left in a wider and flatter container evaporate quicker than when left in a narrower and deeper container?
Consider a substance X with a Hvap = 20.3 kj/mol and Hfus = 9.0 kj/mol. The melting point, freezing point, and heat capacities of both the solid and the liquid X are identical to those of water
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