Map sapling learning this question has been customized by Pamela Mills at City U

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Map sapling learning this question has been customized by Pamela Mills at City University of New York The reaction of the weak acid HCN with the strong base KOH is: HCN(aq) + KOH(aq) HOH(l) + KCN(aq) need to start with the stoichiometry. Let's do just the stoich in steps:. To compute the pH of the resulting solution if 41mL of 0.64M HCN is mixed with 26mL of 0.39 KOH we Number Number How many moles of acid?.0262 How many moles of base?0101 What is the limiting reactant? ? |KOH Number .0161 How many moles of the excess reactant after reaction? Number What is the concentration of the excess reactant after reaction? .2403 Number 10 What is the concentration of the pH active product after reaction? 1.18× 10 These are the initial concentration in an ICE Table! Incorrect. Previous Give Up & View Solution Try Again Next Exit Explanation

Explanation / Answer

pK = pH + log[conj.base]/[conj.acid]

14 = pH +log[CN-]/[H+]

pH = 13.78

[H+] = 6.09 E13

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