Problem: Codeine (C18H21NO3) is a derivative of morphine that is used as an analgesic, narcotic, or antitussive. It was once commonly used in cough syrups but is now available only by prescription because of its addictive properties. If the pH of a 1.7 X 10-3-M solution of codeine is 9.59, calculate Kb.

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FREE Expert Solution

Step 1

pOH = 14 - 9.59 = 4.41


[OH-] = 10-pOH[OH-] =10-4.41

[OH-] = 3.89x10-5 M


Step 2


Step 3

[B] = 1.7x10-3 - 3.89x10-5 = 1.661x10-3 M

[HB] = 3.89x10-5 M


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Problem Details

Codeine (C18H21NO3) is a derivative of morphine that is used as an analgesic, narcotic, or antitussive. It was once commonly used in cough syrups but is now available only by prescription because of its addictive properties. If the pH of a 1.7 X 10-3-M solution of codeine is 9.59, calculate Kb.