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  3. a) a 29.0 ml sample of 0.274 m methylamine, ch3nh2

A) A 29.0 mL sample of 0.274 M methylamine, CH3NH2, is titrated with 0.238 M hydroiodic acid. The pH...

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Chemistry

A) A 29.0 mL sample of 0.274 Mmethylamine,CH3NH2, is titrated with0.238 M hydroiodic acid.

The pH before the addition of any hydroiodic acidis ______.

B) A 24.5 mL sample of 0.220 Methylamine,C2H5NH2, istitrated with 0.399 M hydroiodicacid.

At the titration midpoint, the pH is ______.

C) A 28.2 mL sample of 0.293 Mdimethylamine,(CH3)2NH, is titrated with0.273 M hydrochloric acid.

After adding 13.6 mL of hydrochloricacid, the pH is ______.  

Answer & Explanation Solved by verified expert
3.9 Ratings (499 Votes)
A CH3NH2 H2O CH3NH3 OH which gives OH Kb of CH3NH2 50 x 104 OH sqrt Kb x C sqrt 50 x 104    See Answer
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