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12. A mixture containing 3.9 moles of NO and 0.88 moles of CO2 was allowed to react in a flask at a certain temperature according to the equation NO(g) + CO2(g) ? NO2(g) + CO(g) At equilibrium, 0.11 mole of CO2 was present. Calculate the equilibrium constant Kc of this reaction.
suppose a dna duplex is not self-complementary in the sense that the two polynucleotide strands composing the double
The pH of the solution at the equivalence point. e) The pH of the solution after 40.0 mL of HCl are added.
compute the change in entropy of the universe if water vapor of one mol condenses to liquid water at the temperature of
calculate deltag for this reaction under the following conditions assume an uncertainty of 1 in all quantities
How many moles of O2 are required for the complete reaction of 43.5 g of C2H4 to form CO2 and H2O
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
Identify the Qual I cation(s) that is (are) confirmed present in a test solution by the formation of a precipitate.
Explain how you would prepare each of the following compounds from benzene: a. phenol b. o-ethyltoulene c. 3-chloroaniline d. p-nitrobenzoic acid
Calculate the pH of the solution after the addition of 0.100 mL NaOH. The Ka for HC2H3O2 is 1.8x10^-5.
A gaseous compound containing carbon and hydrogen was analyzed and found to consist of 83.65% carbon by mass. What is the empirical formula of this compound
if the r-3-methyl-12-cyclopentanedione shown below was reducedwith sufficient sodium borohydride to reduce both
a 5.50 g sampleof an unknown is dissolved in 251. g of benzene. the freezing point of the solution is 1.02 c below the
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