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Question- Suppose that 1.652 g of impure barium hydroxide is dissolved in enough water to produce 200. mL of solution and that 25.0 mL of this solution is titrated to the stoichiometric point with14.7 mL of 0.0825 M HCl(aq). What is the percentage purity of the original sample?
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a gas occupying a volume of 139 ml at a pressure of .970 atm is allowed to expand at constant temperature until the
Question- 3C(s) + 3H2(g) -----> C3H6(g) deltaH= 20.41 kJ; deltaS= -131.6J/K at 298K, What is the equilibrium constant at 298K for this reaction
Pinacol (2,3-dimethyl 2,3-butanediol) gives a mixture of pinacolone (3,3-dimethyl-2-butanone) and 2,3-dimethyl 1,3-butadiene by treating with acid.
(a) Calculate the fraction of CuO that will decompose if 0.76 mole of it is placed in a 2.0 L flask at 1024 C. (b) What would the fraction be if a 1.0 mole sample of CuO were used. (c) What is the smallest amount of CuO (in moles) that would estab..
How many isomers of dimethylcyclohexanediol could you get from complete hydroboration-oxidation of 1,4-dimethyl-1,4-cyclohexadiene? Draw them all.
A certain element has three isotopes. The isotopes masses (amu) and abundances are 159.37( 30.60%), 162.79 (15.79%) , and 163.92(53.61%). Explain what is the average atomic weight (amu) of the element
A voltaic cell is constructed by immersing a strip of silver metal in a 1.0 M AgNO3 solution and a strip of cadmium metal in a 1.0 Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way.
what is the crystal lattice energy of lii? sublimation energy for li is 155 kjmol and ionization energy for li is 520
what would be the ph of a solution of hypoiodous acid hoi prepared by dissolving 144 grams of the acid in 200 ml of
The standard width between rails on North American and most European railroads is 4 ft 8 in. Calculate this distance in meters and centimeters.
A particular reactant decomposes with a half-life of 171 s when its initial concentration is 0.329 M. The same reactant decomposes with a half-life of 245 s when its initial concentration is 0.230 M. determine the reaction order. calculate the rat..
If you were transferring 0.2 mL of stock solution to another vial in order to begin performing a 1:5 serial dilution, what volume of DI water must be added to complete the dilution?
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