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Determine the pH of each solution. Dissociation Constants at 25 ∘C Name Formula Ka Formic acid HCHO2 1.8×10−4 Name Formula Kb Methylamine CH3NH2 4.4×10−4 a) 0.21 M KCHO2 b) 0.21...

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Chemistry

Determine the pH of each solution.

Dissociation Constants at 25 ∘C

NameFormulaKa
Formic acidHCHO21.8×10−4
NameFormulaKb
MethylamineCH3NH24.4×10−4

a) 0.21 M KCHO2

b) 0.21 M CH3NH3I

c)0.21 M KI

Answer & Explanation Solved by verified expert
4.4 Ratings (929 Votes)
a 021 M KCHO2 KCHO2 Kaq CH2Oaq expect hydrolysis CH2Oaq H2Ol CH2OH OHaq Let HA CH2OH and A CH2O for simplicity since A is formed the next equilibrium is formed the conjugate acid and water A H2O HA OH The equilibrium s best described by Kb the base constant Kb by definition    See Answer
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