Use PV = nRT and solve for pAr. n = grams Ar/atomic mass Ar. Then Ptotal = 1.35 atm = pAr + pethane
I think the answer is mostly one of reducing the evaporation of the ethanol. That is especially true if the ethanol is being used as a standard for some measurement. The vapor pressure of absolute ethanol at 19 C is something of the order of 40 mm Hg. If you add the water firs...
pKa is 10.26 which is a very weak acid.
Steady state is correct. Here is a very good article on the difference. http://en.wikipedia.org/wiki/Steady_state_%28chemistry%29 I think most of what you have is correct but you may want to modify it here and there after reading the above reference.
Is that 0*1*2*3*4*5*6*7*8*9? If so wouldn't that be zero since any number times zero is zero.
(1/2 cup) x (1 layer/3 layer) = ?
I explained this below along with an implied suggestion that you clarify the question. By the way note the correct spelling of stoichiometry.
I don't know what you want with this. If it's a problem you want it to be worked correctly. If it's a synthesis you want to be able to control the cost. If it's a product you want a certain yield. If you can expand perhaps I'll know where you're going w...
Scroll to the picture. The quality is not very good but you can see the North American Plate (Okla is on this plate) and it also shows the adjacent plates. http://boingboing.net/2010/10/14/earthquakes-in-oklah.html
5 cm/yr x 1000 yrs = ?cm