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A liguid stream in a refinery contains 0.20 mol propane/mol, 0.30 mol butane/mol and 0.50 mole pentane/mol. If the flow rate of the propane is 75 mol/min, what are the flow rates of the butane and pentane
What is the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2? The Ka for acetic acid is 1.8 x 10-5.
If 157 of wet is collected over water at 24 and a barometric pressure of 739 , how many grams of have been consumed? (The vapor pressure of water is 22.38 .)
calculate the ph of the solution that is 0.20M hydrofluoric acid and 0.040 M Lithium fluoride. the Ka for hydrofluoric acid is 3.5*10^-4.
Hexane is used to wash the solid product of a Sn1 carbocation reaction why is ice cold hexane used? and why does it need to be ice cold?
what number of grams of NaHCO3 in a .210 g piece of antacid would generate 38.0 moles of CO2, if the CO2 is measured at 20 degrees C and 1.00 atm.
a highly radioactive element is determined to contain 0.3256 mol of the element. What is the element?
naturally occuring copper contains a miture of 69.09% copper-63 (62.9298 amu) and 30.91% copper-65 (64.9278 amu)
A gas bottle contains .650 mol of gas at .961 atm pressure. If the final pressure is 1.15 atm, how many moles of gas were added to the bottle.
Carbon dioxide is eliminated from pyruvate ions by a decarboxylase enzyme through the following first order reaction Pyruvate(l) goes to CO2(g) + acetaldehyde(l)
calculate the energy, in joules and calories, lost when 75.0 g of water cools from 86.4 degrees celsius to 2.1 degrees celsius
Determine how much heat is released when 15.7 kilo grams of ethane forms If 112 kilo joule is given off per mole of ethene reacting,?
What is the energy in joules released by the fission of a single uranium-235 atom?
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