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Calculate the ph of 1.00×10^-4 molar solution of HNO3 |
| Answer» <html><body><h3><u><strong>Answer:</strong></u></h3><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow 5 \\" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%205%20%5C%5C" title="\displaystyle \sf \longrightarrow 5 \\"/></p><p></p><h3><u><strong>Explanation:</strong></u></h3><p></p><p>Given : </p><p></p><p><img align="absmiddle" alt="\displaystyle \sf Concentration [ \ H^+ \ ] = 1.00\times10^{-4} \ M \\ \\" class="latex-formula" id="TexFormula2" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20Concentration%20%5B%20%5C%20H%5E%2B%20%5C%20%5D%20%3D%201.00%5Ctimes10%5E%7B-4%7D%20%5C%20M%20%5C%5C%20%5C%5C" title="\displaystyle \sf Concentration [ \ H^+ \ ] = 1.00\times10^{-4} \ M \\ \\"/></p><p></p><p>We are asked to <a href="https://interviewquestions.tuteehub.com/tag/find-11616" style="font-weight:bold;" target="_blank" title="Click to know more about FIND">FIND</a> pH : </p><p></p><p>We know : </p><p></p><p><img align="absmiddle" alt="\displaystyle \sf pH=-\log [ \ H^+ \ ] \\ \\" class="latex-formula" id="TexFormula3" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20pH%3D-%5Clog%20%5B%20%5C%20H%5E%2B%20%5C%20%5D%20%5C%5C%20%5C%5C" title="\displaystyle \sf pH=-\log [ \ H^+ \ ] \\ \\"/></p><p></p><p><a href="https://interviewquestions.tuteehub.com/tag/putting-2963476" style="font-weight:bold;" target="_blank" title="Click to know more about PUTTING">PUTTING</a> <a href="https://interviewquestions.tuteehub.com/tag/values-25920" style="font-weight:bold;" target="_blank" title="Click to know more about VALUES">VALUES</a> here we get : </p><p></p><p><img align="absmiddle" alt="\displaystyle \sf pH=-\log [ \ 1.00\times10^{-4} \ ] \\ \\" class="latex-formula" id="TexFormula4" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20pH%3D-%5Clog%20%5B%20%5C%201.00%5Ctimes10%5E%7B-4%7D%20%5C%20%5D%20%5C%5C%20%5C%5C" title="\displaystyle \sf pH=-\log [ \ 1.00\times10^{-4} \ ] \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf pH=-\log [ \ 10.0\times10^{-5} \ ] \\ \\" class="latex-formula" id="TexFormula5" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20pH%3D-%5Clog%20%5B%20%5C%2010.0%5Ctimes10%5E%7B-5%7D%20%5C%20%5D%20%5C%5C%20%5C%5C" title="\displaystyle \sf pH=-\log [ \ 10.0\times10^{-5} \ ] \\ \\"/></p><p></p><p>Using log <a href="https://interviewquestions.tuteehub.com/tag/rule-1192038" style="font-weight:bold;" target="_blank" title="Click to know more about RULE">RULE</a> : </p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow \log a^x=x. \log a \\ \\" class="latex-formula" id="TexFormula6" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20%5Clog%20a%5Ex%3Dx.%20%5Clog%20a%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow \log a^x=x. \log a \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow \log 10=1 \\ \\" class="latex-formula" id="TexFormula7" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20%5Clog%2010%3D1%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow \log 10=1 \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow pH=-(-5).\log [ \ 10.0 \ ] \\ \\" class="latex-formula" id="TexFormula8" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20pH%3D-%28-5%29.%5Clog%20%5B%20%5C%2010.0%20%5C%20%5D%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow pH=-(-5).\log [ \ 10.0 \ ] \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow pH=5.\log [ \ 10.0 \ ] \\ \\" class="latex-formula" id="TexFormula9" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20pH%3D5.%5Clog%20%5B%20%5C%2010.0%20%5C%20%5D%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow pH=5.\log [ \ 10.0 \ ] \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow pH=5\times1 \\ \\" class="latex-formula" id="TexFormula10" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20pH%3D5%5Ctimes1%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow pH=5\times1 \\ \\"/></p><p></p><p><img align="absmiddle" alt="\displaystyle \sf \longrightarrow pH=5 \\ \\" class="latex-formula" id="TexFormula11" src="https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Csf%20%5Clongrightarrow%20pH%3D5%20%5C%5C%20%5C%5C" title="\displaystyle \sf \longrightarrow pH=5 \\ \\"/></p><p></p><h3><u>Hence we get <a href="https://interviewquestions.tuteehub.com/tag/required-1185621" style="font-weight:bold;" target="_blank" title="Click to know more about REQUIRED">REQUIRED</a> answer!</u></h3></body></html> | |