12/14/2016 RWW12 pH of Acids and Baseshttp://www.webassign.net/web/Student/AssignmentResponses/view_key?dep=14314093 1/4Current Score : – / 100 Due : Tuesday, October 25 2016 11:59 PM EDT1. –/12 pointsAssume negliglible ionization to determine the percent ionization of each of the following acids and thenindicate whether the assumption was valid.a) 0.800 M solution of cyannic acid (HCNO, pKa = 3.46)% ionization = (No Response) 2.09 valid: (No Response) Yesb) 0.1000 M solution of hydroazoic acid (HN3, pKa = 4.60)% ionization = (No Response) 1.58 valid: (No Response) Yesc) 0.010 M solution of benzoic acid (HC7H5O2, pKa = 4.19)% ionization = (No Response) 8.06 valid: (No Response) NoRWW12 pH of Acids and Bases (Homework)Paddy SheehanCH 201, section 002, Fall 2016Instructor: Robert WarrenWebAssignThe due date for this assignment i s past. Your work can be viewed below, but no changes can be made.12/14/2016 RWW12 pH of Acids and Baseshttp://www.webassign.net/web/Student/AssignmentResponses/view_key?dep=14314093 2/42. –/10 pointsA solution is labeled "0.451 M HClO." What are the following in the solution? Express your answers tothree significant figures even when only two are valid. Acidbase table[HClO] = (No Response) 0.451 M[H3O1+] = (No Response) 1.26e04M[ClO1] = (No Response) 1.26e04MpH = (No Response) 3.903. –/10 pointsDetermine the following in a 0.0860 M solution of HIO3 (Ka = 0.170)?[HIO3] =(No Response) 0.0232 M[IO31] =(No Response) 0.0628 M[H3O1+] =(No Response) 0.0628 MpH = (No Response) +1.2004. –/8 pointsWhat is the Ka of the acid HZ, if a 0.0739 M solution has a pH of 2.050Ka = (No Response ) 1.22e0312/14/2016 RWW12 pH of Acids and Baseshttp://www.webassign.net/web/Student/AssignmentResponses/view_key?dep=14314093 3/45. –/8 pointsWhat is the pKa of HX if [X1] = 0.069 M in a 0.128 M solution of HX?pKa = (No Response ) 1.096. –/8 pointsWhat is the percent dissociation of HX (pKa = 6.09) in a 0.242 M solution?(No Response) 1.83E01 %7. –/8 pointsHow many millimoles of HX (pKa = 1.69) are required to make 350. mL of a solution with a pH of 2.55?(No Response) 1.12E+00 mmol HX8. –/16 pointsCalculate the concentrations of all species in a 0.210M solution of H2X if K1 = 1.58E06 and K2 = 2.82E09[H2X] = (No Response) 0.210M[H3O1+] = (No Response) 5.76E04M[HX1] = (No Response) 5.76E04M[X2] = (No Response) 2.82E09M12/14/2016 RWW12 pH of Acids and Baseshttp://www.webassign.net/web/Student/AssignmentResponses/view_key?dep=14314093 4/49. –/8 pointsWhat is the pKb of a weak base KA if the pH of a 0.085M solution of KA is 10.18?pKb = (No Response ) 6.5710.–/12 pointsIndicate whether each of the following salts are acidic (a), basic (b), or neutral (n).K3PO4(No Response) BasicKH2PO4(No Response) AcidicKBr (No Response) NeutralNH4NO2(No Response)
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