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A solar cell created in this lab had an area of 1 square inch. Specified the voltage output while the cell was in the sun was around 200 A, Explain what would be the area a cell would be required to produce the voltage equivalent of a common 9 Volt battery?
a stream of toluene at 500degc and 2 bar flowing at 40 kmolh is cooled to 200degc and 1 bar pressure in a heat
The first equivelence point is reached when 24.50 mL of base have been added. What is the molecular weight of the unknown acid?
What is your theoretical yield. i) in mols ii) in grams iii) in mL b) What are other compounds that could possibly form that would decrease your % yield
It then gives off a photon having a wavelength of 1740 nm. What is the final state of the hydrogen atom? Values for physical constants can be found here.
if you want to receive a 6.5 inflation-freereturn on your investment and you expect inflation to be 5 per year what
A sample of helium gas occupies a volume of 38L at 780 torr and 25ºC. What volume would the gas occupy at standard temperature and pressure
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash
If 14.70ml EDTA is required to titrate the 50ml sample, what is hardness of ground water, and molarity in ppm of CaCO3 by mass?
Calculate the solubility of AgBr in (a)H2O (b) 1.0M hypo. Kf of Ag(S2O3)2^3- is 4,7 x 10^13 and Ksp AgBr is 5 x 10^-13.
Suppose an adult is encased in a thermally insulating barrier so that all the heat evolved by metabolism of foodstuffs is retained by the body. What temperature does her body reach after 3.0 hours
The working buffer solution was warmed to 30oC and the pH of this solution was determined to be 8.03. What is the pKa of Tris under these conditions
if the volume of the gaseous reactants and products in the equation 2c2h6nbsp 7o2regnbsp4co2nbsp 6h2o are measured at 1
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