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1. Calculate the fraction of association (α) for the following concentrations of sodium butanoate. (Assume Ka =...

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Chemistry

1. Calculate the fraction of association (α) for thefollowing concentrations of sodium butanoate. (AssumeKa = 1.52 ✕ 10−5 andKw = 1.01 ✕ 10−14. Enter unroundedvalues.)

(a)    1.04 ✕ 10−1M  
(b)    1.04 ✕ 10−2M
(c)    1.04 ✕ 10−12M

2.How many milliliters of 0.248 M HNO3should be added to 217 mL of 0.00662 M 2,2'-bipyridinehydrochloride to give a pH of 4.18? (Assume pKa= 4.34 and Kw = 1.01 ✕ 10−14.)

Answer & Explanation Solved by verified expert
3.7 Ratings (487 Votes)
The association reaction of sodium butanoate isCH3CH2CH2COOaq H2O CH3CH2CH2COOH OHaq Kb Kw Ka 101x1014 152x105InitconcM 104x101 0 0eqmconcM104x101 We calculate Kb Kb 101x1014 152x105 6645x1010then we can calculate a    See Answer
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