1.

A solution is formed by mixing 0.2 M NH_(4)Cl and 0.1M NH_(3). The pH of the solution will be close to (pK_(b) of ammonia solution = 4.75).

Answer» <html><body><p><br/></p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/poh-1145204" style="font-weight:bold;" target="_blank" title="Click to know more about POH">POH</a> = 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>) + log .(["<a href="https://interviewquestions.tuteehub.com/tag/salt-1193804" style="font-weight:bold;" target="_blank" title="Click to know more about SALT">SALT</a>"])/(["<a href="https://interviewquestions.tuteehub.com/tag/base-892693" style="font-weight:bold;" target="_blank" title="Click to know more about BASE">BASE</a>"])=4.75 + log.(0.2)/(0.1)` <br/> `=4.75+ log 2 = 4.75 + 0.3010 ~=5.0` <br/> `:. <a href="https://interviewquestions.tuteehub.com/tag/ph-1145128" style="font-weight:bold;" target="_blank" title="Click to know more about PH">PH</a> = 14 - 5.0 = 9`.</body></html>


Discussion

No Comment Found