Thursday
August 28, 2014

Posts by UTramos


Total # Posts: 4

chem
What is the strongest acid among the following? a. CH3COOH b. (Cl)CH2COOH c. (Cl)2CHCOOH d. (Cl)3CCOOH isnt it the most electronegative if the oxygens are the same? The strength of an organic acid depends on the degree of ionization. The chloride end attracts protons, pulling ...
July 16, 2006

chem
how do u set up with problem How would you prepare 165 mL of a 0.0317 m solution of benzoic acid (C7H6O2) in chloroform (CHCl3)? Just follow the definition of molarity. M = mols per L of solution I am assuming the m is molarity. But if it is molality, then molality is mols per...
June 30, 2006

chem
How would u prepare each of the following solutions 100 mL of a 245 ppm solution of urea, CH4N2O, in water and How would u prepare each of the following solution 100 mL of an aqueous solution whose K+ concentration is 0.084 M Write up the procedure, and I will gladly check it...
June 27, 2006

chemistry
A mixture of Ar and N2 gases has a density of 1.361 g/L at STP. What is the mole fraction of each gas? not sure on really where to start Work this as the classic mixture: the mass of 22.4 liters of the gas is 1.361*22.4 grams. molmassargon*Far + molmassN2*Fn2=1.361*22.4 where ...
June 18, 2006

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