{"id":205993,"date":"2025-03-26T06:25:34","date_gmt":"2025-03-26T06:25:34","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=205993"},"modified":"2025-03-26T06:25:36","modified_gmt":"2025-03-26T06:25:36","slug":"what-is-the-ph-of-a-0-0235-m-hcl-solution","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/26\/what-is-the-ph-of-a-0-0235-m-hcl-solution\/","title":{"rendered":"What is the pH of a 0.0235 M HCl solution"},"content":{"rendered":"\n

What is the pH of a 0.0235 M HCl solution?<\/p>\n\n\n\n

The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n

To calculate the pH of a 0.0235 M HCl solution, we use the formula:<\/p>\n\n\n\n

[
\\text{pH} = -\\log [\\text{H}^+]
]<\/p>\n\n\n\n

Since HCl is a strong acid, it fully dissociates in water:<\/p>\n\n\n\n

[
\\text{HCl} \\rightarrow \\text{H}^+ + \\text{Cl}^-
]<\/p>\n\n\n\n

Thus, the concentration of hydrogen ions ((\\text{H}^+)) is equal to the concentration of HCl:<\/p>\n\n\n\n

[
[\\text{H}^+] = 0.0235 \\text{ M}
]<\/p>\n\n\n\n

Now, calculating the pH:<\/p>\n\n\n\n

[
\\text{pH} = -\\log (0.0235)
]<\/p>\n\n\n\n

[
\\text{pH} \\approx 1.63
]<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n
    \n
  1. Definition of pH<\/strong>: pH is a measure of the acidity of a solution, defined as the negative logarithm of the hydrogen ion concentration. Lower pH values indicate stronger acidity.<\/li>\n\n\n\n
  2. HCl as a Strong Acid<\/strong>: Hydrochloric acid (HCl) is a strong acid, meaning it completely dissociates in water. This simplifies the calculation because the concentration of hydrogen ions is directly equal to the initial concentration of HCl.<\/li>\n\n\n\n
  3. Logarithmic Calculation<\/strong>: The logarithm function helps convert hydrogen ion concentration into a more manageable scale (0 to 14). In this case, taking the negative logarithm of 0.0235 gives us a pH of approximately 1.63.<\/li>\n\n\n\n
  4. Understanding the Result<\/strong>: Since the pH is less than 7, the solution is acidic. A pH of around 1.63 indicates a moderately strong acidic solution, which is expected for dilute strong acids like this one.<\/li>\n<\/ol>\n\n\n\n
    \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

    What is the pH of a 0.0235 M HCl solution? The correct answer and explanation is : To calculate the pH of a 0.0235 M HCl solution, we use the formula: [\\text{pH} = -\\log [\\text{H}^+]] Since HCl is a strong acid, it fully dissociates in water: [\\text{HCl} \\rightarrow \\text{H}^+ + \\text{Cl}^-] Thus, the concentration of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-205993","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/205993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=205993"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/205993\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=205993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=205993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=205993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}