A buffer solution contains 2 moles of ammonium hydroxide and 0.25 mole of ammonium chloride per dm^(3) of the solution. (K_(b) for ammonium hydroxide = 1.8xx10^(-5)). Calculate the pH of the buffer solution.

A buffer solution contains 2 moles of ammonium hydroxide and 0.25 mole

1.	A buffer solution contains 2 moles of ammonium hydroxide and 0.25 mole of ammonium chloride per dm^(3) of the solution. (K_(b) for ammonium hydroxide = 1.8xx10^(-5)). Calculate the pH of the buffer solution.
Answer» <html><body><p></p>Solution :It is a <a href="https://interviewquestions.tuteehub.com/tag/basic-15343" style="font-weight:bold;" target="_blank" title="Click to know more about BASIC">BASIC</a> <a href="https://interviewquestions.tuteehub.com/tag/buffer-905159" style="font-weight:bold;" target="_blank" title="Click to know more about BUFFER">BUFFER</a> <br/> `pOH=pK_(<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>)+"<a href="https://interviewquestions.tuteehub.com/tag/log-543719" style="font-weight:bold;" target="_blank" title="Click to know more about LOG">LOG</a>"(["Salt"])/(["Base"])` <br/> = `4.74+"log"0.25/2=4.74+"log"0.25/2` <br/> = 4.74 - 0.90 = 3.64 <br/> pH = 14 - 3.64 <br/> = 10.36</body></html>