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Compute the concentration in molecules cm -3 and the mixing ratio in ppm of water vapor at ground level at T = 298 K at RH values of 50%, 60%, 70%, 80%, 90%, 95%, and 99%.
What would happen to the % Transmittance value if the wavelegth is changed from 447nm to 520 nm
if adding 62.0 calories to an aluminum block causes the temperature of the aluminum to increase from 62*F to 89*F, what is the mass in grams of the aluminum block
what volume of carbone dioxide ,measured at STP,would result from the reaction of 9.786 kg of oxygen with excess pentane
the quantity 432 mg of a monoamino monocarboxylic amino acid isobserved to consume 7.39 meq of acid and base in the
Include in your explanation from which C and in what form the H would have to leave: [H+, H(with one electron), H(with two electrons)].
A 12-oz (355-mL) Pepsi contains 38.9 mg caffeine (molar mass ?? 194.2 g/mol). Assume that the Pepsi, mainly water, has a density of 1.01 g/mL.
The problem is about a solution in second order that the original [A]o = 0.100M. 20% of the reaction is completed in 40 minutes. What is the rate constant? What is the half-life?
Determine how many grams of NaCl should be dissolved in a liter of H 2 O to produce an isotonic solution?
Explain why anhydrous sodium sulfate is used in the extraction experiment and write reactions that shows what happens. Organic layer has p-tert-Butylphenol
iron has a density of 7.874. gcm3. what is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000
Calculate the time to drain water at 20C from a vertical tank 1.7 m in radius from a depth of 13 m to 1.6 m through a 1 cm in radius pipe 12 m long connected vertically at the bottom of the tank. Take η = 1 cP where 1P = 1 g/(cm s)
As a side reaction of benaldehyde with Al in .5M NaOH would ethyl acetate keep it from contaminating the hydrobenzoin product
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