NH3 is: A. a strong acid B. a strong base C. a weak acid D. a weak base<\/p>\n\n\n\n
The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n Correct Answer: D. a weak base<\/strong><\/p>\n\n\n\n Ammonia, represented by the chemical formula NH\u2083, is classified as a weak base<\/strong>. In aqueous solutions, ammonia reacts with water to a limited extent, forming ammonium ions (NH\u2084\u207a) and hydroxide ions (OH\u207b). The reaction is as follows:<\/p>\n\n\n\n NH\u2083 + H\u2082O \u21cc NH\u2084\u207a + OH\u207b<\/strong><\/p>\n\n\n\n This equilibrium reaction does not go to completion. Instead, only a small fraction of ammonia molecules accept protons from water, which means that the concentration of hydroxide ions produced is relatively low. Because of this partial ionization, ammonia is categorized as a weak base.<\/p>\n\n\n\n A strong base, like sodium hydroxide (NaOH), dissociates completely in water, releasing a high concentration of hydroxide ions. Ammonia does not behave like this. Its basicity is due to the lone pair of electrons on the nitrogen atom, which allows it to accept a proton from water molecules, forming the ammonium ion. However, because this proton acceptance is not complete and reversible, the base is considered weak.<\/p>\n\n\n\n The strength of a base is often measured by its base dissociation constant (Kb). For ammonia, the Kb value is approximately 1.8 \u00d7 10\u207b\u2075<\/strong>, which is much lower than that of strong bases. This value confirms that ammonia does not produce a large amount of OH\u207b in solution.<\/p>\n\n\n\n Despite being a weak base, ammonia is commonly used in household cleaners and fertilizers due to its effectiveness in reacting with acids and breaking down grease or stains. Understanding that NH\u2083 is a weak base is important in chemistry, especially in acid-base reactions, buffer systems, and pH calculations.<\/p>\n","protected":false},"excerpt":{"rendered":" NH3 is: A. a strong acid B. a strong base C. a weak acid D. a weak base The correct answer and explanation is: Correct Answer: D. a weak base Ammonia, represented by the chemical formula NH\u2083, is classified as a weak base. In aqueous solutions, ammonia reacts with water to a limited extent, forming […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31178","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=31178"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31178\/revisions"}],"predecessor-version":[{"id":31179,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31178\/revisions\/31179"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=31178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=31178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=31178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}