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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: alexa95 on November 11, 2014, 04:43:48 PM

Title: pH
Post by: alexa95 on November 11, 2014, 04:43:48 PM

Codeine (C18H21NO3) is a weak base with Kb=1.6 x 10^-6 . 50ml of a 0.1M solution of codeine is acidified by addition of 60.0ml of a 0.05M HCl solution. Determine the pH of the resulting solution.

Title: Re: pH
Post by: Arkcon on November 11, 2014, 05:29:22 PM

Welcome to the chemicalforums, alexa95:, please trouble yourself to read the Forum Rules{click} (http://www.chemicalforums.com/index.php?topic=65859.0).  We don't give complete answers on this forum.  Show us what you've done so far to try and solve this problem yourself.  If you assume the codeine and acidified codeine are making a buffer, do you have an idea of what formula to use?