The equilibrium constant for this reaction is 36 x 10 7 OClaq H 2 Ol HOClaq

The equilibrium constant for this reaction is 36 x 10

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36. The equilibrium constant for this reaction is 3.6 x 10¯7OCl¯(aq) + H2O(l) <===> HOCl(aq) + OH¯(aq) What is Kafor HOCl? (A) 2.8 x 10¯8(B) 3.6 x 10¯7(C) 6.0 x 10¯4(D) 2.8 x 10637. For which titration would the use of phenophthalein introduce a significant error? Kindicatorfor phenolphthalein = 1 x 10¯9
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38. When solid lead iodide is added to water, the equilibrium concentration of I¯ becomes 2.6 x 10¯3M. What is the Kspfor PbI2? 39. When these standard half reactions are combined to give a spontaneous reaction in a voltaic cell, what is the cell voltage? Standard Reduction Potentials, Sn2+(aq) + 2e¯ ---> Sn(s) -0.14 V Ag+(aq) + e¯ ---> Ag(s) +0.80 V 40. How many moles of elections are transferred when this equation is balanced with the smallest whole number coefficients? _IO3¯ + _H2O2+ _H+---> _I2+ _O2+ _H2O 41. If the E°cellfor a given reaction has a negative value, which gives the correct relationships for the values of G° and Keq? A. G° > 0; Keq< 1 B. G° > 0; Keq> 1 C. G° < 0; Keq> 1 D. G° < 0; Keq< 1 42. When anions undergo oxidation, they move toward the
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43. How much time is required to produce 0.10 mol of chlorine gas during the electrolysis of molten sodium chloride using a current of 3.0 amps? 44. The visible spectrum of the hydrogen atom consists of a series of lines that 45. When the elements C, N and Si are arranged in order of increasing first ionization energy, which is the correct order? A. C < N < Si B. N < C < Si C. Si < C < N D. Si < N < C 46. Which is a possible set of quantum numbers for a valence electron in ground state atom of phosphorus? n l mlms47. These are the first eight ionization energies for a particular neutral atom. All values are expressed in MJ mol¯1. How many valence electrons does this atom possess? 1st 2nd 3rd 4th 5th 6th 7th 8th 1.31 3.39 5.30 7.47 10.99 13.33 71.33 84.01
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