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Problem- What is the concentration of TCE that moves though air only by diffusion at a distance of 10 m if the initial particle concentration at the point of generation are 100 µg/m3? Consider no other transport mechanism, but diffusion with flux of 1.1 x 10-5 µg/m2.s. The diffusivity coefficient of TCE at 1 atm and 200C is 0.082 cm2/s.
Illustrate all work utilize additional paper if required.
a 12.6 g sample of nh4no3 is dropped into a constant-pressure calorimeter containing 175 g of water at 23.5 c. what
If you used a concentration of 0.0065 M sodium thiosulfate instead of 0.0050 M sodium thiosulfate called for in reaction 1, what effects would this have, if any, on the rate of the reaction
The determination of iron in industrial waste stream is often carried out by reacting the water sample with o-phenanthroline to form a red-orange complex that absorbs at 510 nm.
If you compare the melting point of a slightly impure mixture with the melting point of a pure compound, the melting point of the slightly impure mixture will be: a) broader and lower than the eutectic mixture
A drop of the NaOH titrant adheres to the side of the buret between the initial and final readings for the titration. As a result of the "clean glass" error, will the molar concentration of the NaOH solution be reported as too high or too low. Exp..
Since there isn't an oxygen or some other electronegative atom in the molecule I'm not sure which peaks are which.
Fundamentally, why would any line in the hydrogen spectrum between 250 nm and 700 nm belong to the balmer series. How much energy in kj per mole does it take to ionize an H atom
Let's abbreviate the fully protonated form of the diprotic amino acid alanine (NH3+-CHCH3-COOH) as H2L+. Find the pH and concentrations of H2L, HL, and L- in
steam from a boiling teapot 100 degc hits a persons hand and causes a burn. assuming 1 g of water vapor condenses to
How many grams of ethylene glycol, C2H4(OH)2, must be added to 800 g of water to yield a solution that will freeze at -8.4 oC
A certain amount of gas at 25degrees celcius and at a pressure of 0.800atm is contained in a glass vessel .suppose that the vessel can withstand a pressure of 2.00atm.How high can you raise the temperature of the gas without bursting the vessel.
After mixing 500mg of XI3 with sufficient Cl2, 236mg of XCl3 are obtained. This represents 100% yield of that reaction. Determine the identity of element X.
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