A pH of 12 indicates a(n):
A. weak acid
B. weak base
C. strong acid
D. strong base<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is: A pH of 12 indicates a strong base. The pH scale ranges from 0 to 14 and measures the concentration of hydrogen ions (H\u207a) in a solution. It is logarithmic, meaning each unit change represents a tenfold difference in H\u207a concentration. A neutral pH, such as pure water, is 7, where the concentration of H\u207a ions is equal to the concentration of hydroxide ions (OH\u207b).<\/p>\n\n\n\n A pH of 12 suggests that the concentration of OH\u207b ions is very high compared to H\u207a ions, making the solution strongly basic. Strong bases dissociate completely in water, meaning they release a significant amount of OH\u207b ions, reducing the presence of H\u207a ions significantly. This explains why the pH is high.<\/p>\n\n\n\n A strong base<\/strong> (pH 11-14) dissociates fully, leading to high alkalinity, which makes it highly reactive. Examples include NaOH and potassium hydroxide (KOH). These are used in cleaning products due to their ability to neutralize acids and break down organic material. Therefore, a solution with a pH of 12 is classified as a strong base, indicating its high alkalinity and strong reactivity in neutralizing acids.<\/p>\n","protected":false},"excerpt":{"rendered":" A pH of 12 indicates a(n):A. weak acidB. weak baseC. strong acidD. strong base The Correct Answer and Explanation is: The correct answer is:D. strong base A pH of 12 indicates a strong base. The pH scale ranges from 0 to 14 and measures the concentration of hydrogen ions (H\u207a) in a solution. It is […]<\/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-154822","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/154822","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=154822"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/154822\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=154822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=154822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=154822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
D. strong base<\/strong><\/p>\n\n\n\nUnderstanding pH Levels:<\/h3>\n\n\n\n
\n
Strong Bases vs. Weak Bases:<\/h3>\n\n\n\n
On the other hand, a weak base<\/strong> (pH 8-10) only partially dissociates in water, resulting in fewer OH\u207b ions in the solution. These include compounds like ammonia (NH\u2083).<\/p>\n\n\n\n