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For 540.0mL of a buffer solution that is 0.165M in CH3CH2NH2 and 0.155M in CH3CH2NH3Cl, calculate...

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Chemistry

For 540.0mL of a buffer solution that is 0.165M inCH3CH2NH2 and 0.155M in CH3CH2NH3Cl, calculate the initialpH and the final pH after adding 0.020mol of HCl.

Answer & Explanation Solved by verified expert
3.6 Ratings (633 Votes)
we know that Ch3CH2NH2 and CH3CH2NH3Cl form a basic buffer for a basic buffer pOH pKb log conjugate acid base so pOH pKb log CH3CH2NH3 CH3CH2NH2 pKb for CH3CH2NH2 is 319 using given values pOH 319    See Answer
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