ege-CHE 168-Spring18-MCGREGOR Activities and Due Dates > Topic 6 Skills Practice
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Question
ege-CHE 168-Spring18-MCGREGOR Activities and Due Dates > Topic 6 Skills Practice Video B 2/24/2018 11:55 PM Oo/3 Gra Print Calculator-) Periodic Table estion 1 of 3 Faculty and Staff at City University of New York ICUNYL Lehman C Ma The reaction of the strong acid HBr with the strong base KOH is: HBr(aq) + KOH(aq) HOH(1) + KBriaq) Compute the pH of the resulting solution if 61mL of 0, 49M acid is mixed with 39mL of 0.32M base. Let's do this in steps: (use 2 sig figs in your answer) Number How many moles of acid before reaction? Number How many moles of base before reaction? What is the limiting reactant? Number How many moles of the excess reagent after reaction? Number What is the concentration of the excess reagent after reaction? Number What is the pH of the resulting solution? @ Previous Give Up & View Solution Hint (O Check Answer e Next ExitExplanation / Answer
No of moles of acid before reaction: 1.33*10-3
No of moles of moles of base before reaction: 5.57*10-4
Limiting reagent: KOH
Concentration of the excess reagent after reaction: 7.73*10-4
pOH of the resulting solution: -log[7.73*10-4] = 3.11
Thus, pH of the solution= 14-3.11 = 10.89
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