{"id":130811,"date":"2023-02-14T12:28:35","date_gmt":"2023-02-14T06:58:35","guid":{"rendered":"https:\/\/www.mapsofindia.com\/my-india\/?p=130811"},"modified":"2023-02-14T12:28:35","modified_gmt":"2023-02-14T06:58:35","slug":"what-is-the-ph-of-hcl-solution-when-the-hydrogen-gas-electrode-shows-a-potential-of-0-59-v-at-standard-temperature-and-pressure","status":"publish","type":"post","link":"https:\/\/www.mapsofindia.com\/my-india\/education\/what-is-the-ph-of-hcl-solution-when-the-hydrogen-gas-electrode-shows-a-potential-of-0-59-v-at-standard-temperature-and-pressure","title":{"rendered":"What is the pH of HCl solution when the hydrogen gas electrode shows  a potential of -0.59 V at standard temperature and pressure?"},"content":{"rendered":"<h2>Question 34:What is the pH of HCl solution when the hydrogen gas electrode shows a potential of -0.59 V at standard temperature and pressure?<\/h2>\n<h3>The correct answer is &#8211; The standard reduction potential of the hydrogen electrode is 0 V. At standard temperature and pressure, the potential of the hydrogen gas electrode is related to the pH of the solution by the Nernst equation:<\/h3>\n<div class=\"w-full border-b border-black\/10 dark:border-gray-900\/50 text-gray-800 dark:text-gray-100 group bg-gray-50 dark:bg-[#444654]\">\n<div class=\"text-base gap-4 md:gap-6 m-auto md:max-w-2xl lg:max-w-2xl xl:max-w-3xl p-4 md:py-6 flex lg:px-0\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gap-1 md:gap-3 lg:w-[calc(100%-115px)]\">\n<div class=\"flex flex-grow flex-col gap-3\">\n<div class=\"min-h-[20px] flex flex-col items-start gap-4 whitespace-pre-wrap\">\n<div class=\"markdown prose w-full break-words dark:prose-invert dark\">\n<h3>E = E\u00b0 &#8211; (0.0592 V \/ n) log([H+])<\/h3>\n<h3>where E\u00b0 is the standard reduction potential of the hydrogen electrode, n is the number of electrons transferred (which is 2 in this case), [H+] is the hydrogen ion concentration, and E is the electrode potential.<\/h3>\n<h3>Substituting the values given:<\/h3>\n<h3>-0.59 V = 0 V &#8211; (0.0592 V \/ 2) log([H+])<\/h3>\n<h3>Solving for [H+]:<\/h3>\n<h3>log([H+]) = -0.59 V \/ (0.0592 V) x 2<\/h3>\n<h3>log([H+]) = -9.966<\/h3>\n<h3>[H+] = 10^(-9.966)<\/h3>\n<h3>[H+] = 1.18 x 10^(-10) M<\/h3>\n<h3>Therefore, the pH of the HCl solution is:<\/h3>\n<h3>pH = -log[H+] pH = -log(1.18 x 10^(-10)) pH = 9.93<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Question 34:What is the pH of HCl solution when the hydrogen gas electrode shows a potential of -0.59 V at standard temperature and pressure? The correct answer is &#8211; The standard reduction potential of the hydrogen electrode is 0 V. At standard temperature and pressure, the potential of the hydrogen gas electrode is related to [&hellip;]<\/p>\n","protected":false},"author":21830,"featured_media":130487,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":{"0":"post-130811","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-education"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/130811","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/users\/21830"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/comments?post=130811"}],"version-history":[{"count":2,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/130811\/revisions"}],"predecessor-version":[{"id":130815,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/posts\/130811\/revisions\/130815"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/media\/130487"}],"wp:attachment":[{"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/media?parent=130811"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/categories?post=130811"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.mapsofindia.com\/my-india\/wp-json\/wp\/v2\/tags?post=130811"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}