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10^(-6)MNaOH is diluted 100 times. The pH of the diluted base is |
Answer» <html><body><p>between 5 and 6<br/> between 6 and 7<br/> between 10and <a href="https://interviewquestions.tuteehub.com/tag/11-267621" style="font-weight:bold;" target="_blank" title="Click to know more about 11">11</a><br/> between 7 and 8</p>Solution :`[OH^(-)]` after dilution `= (<a href="https://interviewquestions.tuteehub.com/tag/10-261113" style="font-weight:bold;" target="_blank" title="Click to know more about 10">10</a>^(-6))/(<a href="https://interviewquestions.tuteehub.com/tag/100-263808" style="font-weight:bold;" target="_blank" title="Click to know more about 100">100</a>)=10^(-8)M` <br/> `:. OH^(-)` <a href="https://interviewquestions.tuteehub.com/tag/ions-1051295" style="font-weight:bold;" target="_blank" title="Click to know more about IONS">IONS</a> from `H_(2)O` cannot be neglected. <br/> Total `[OH^(-)]=10^(-8)+10^(-7)=10^(-8)xx11` <br/> `:. pOH=-log(11xx10^(-8))=8-1.04=6.96` <br/> `:. pH = 14 - 6.96 = 7.04`</body></html> | |