Many drugs administered to patients are actually primary amine (RNH2 derivatives).  These drugs may be very hydrophobic but are made water soluble by making them as mine salts.  A synthetic chemist treats the primary amine derivative with a strong acid like hydrochloric acid to make the amine salt.  Calculate the pH at the equivalence point in the titration of 75 mL of 0.10 M Methylamine with a 0.30 M HCl solution. The Ka for methylamine (CH3NH2) is 2.3X10-11.

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A: B

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.