Predict what would be observed (and why) from an aqueous mixture for each of the following (all substances are water soluble). a.) potassium carbonate and hydrochloric acid: The reaction will cause carbon dioxide bubbles b.) zinc chloride and silver nitrate: The reaction will cause a white precipitate c.) magnesium chloride and sodium hydroxide: The reaction will cause a white precipitate d.) ammonium nitrate and sodium hydroxide:<\/p>\n\n\n\n
The correct answer and explanation is:<\/strong><\/mark><\/p>\n\n\n\n Correct Answer for (d):<\/strong> Explanation (300 words):<\/strong> The balanced chemical equation is:<\/p>\n\n\n\n NH\u2084NO\u2083 (aq) + NaOH (aq) \u2192 NH\u2083 (g) + H\u2082O (l) + NaNO\u2083 (aq)<\/strong><\/p>\n\n\n\n Ammonium nitrate provides NH\u2084\u207a ions<\/strong>, while sodium hydroxide provides OH\u207b ions<\/strong>. The hydroxide ions<\/strong> deprotonate the ammonium ions<\/strong>, releasing ammonia gas (NH\u2083)<\/strong> and forming water. The remaining ions, Na\u207a<\/strong> and NO\u2083\u207b<\/strong>, stay dissolved in the solution as sodium nitrate.<\/p>\n\n\n\n This reaction is a typical acid-base reaction<\/strong>, where NH\u2084\u207a<\/strong> acts as a weak acid and OH\u207b<\/strong> as a strong base. The evolution of a gas (ammonia)<\/strong> is an observable sign of the reaction. The ammonia gas has a sharp, pungent smell<\/strong>, which can be used to identify the gas. If the test is done near moist red litmus paper, the paper will turn blue, confirming the basic nature<\/strong> of the gas.<\/p>\n\n\n\n Unlike other combinations in the list (which may produce bubbles<\/strong> from CO\u2082 or precipitates<\/strong> from insoluble salts), this reaction’s key observation is ammonia gas release<\/strong>, not bubbling from carbonate or a visible solid. The lack of a visible precipitate or bubbling may make it less obvious, but the distinct smell of ammonia<\/strong> makes this reaction noticeable.<\/p>\n\n\n\n Therefore, when ammonium nitrate and sodium hydroxide are mixed in solution, the evolution of ammonia gas<\/strong> is the primary observable change due to a displacement reaction involving a weak acid and a strong base.<\/p>\n","protected":false},"excerpt":{"rendered":" Predict what would be observed (and why) from an aqueous mixture for each of the following (all substances are water soluble). a.) potassium carbonate and hydrochloric acid: The reaction will cause carbon dioxide bubbles b.) zinc chloride and silver nitrate: The reaction will cause a white precipitate c.) magnesium chloride and sodium hydroxide: The reaction […]<\/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-31258","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31258","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=31258"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31258\/revisions"}],"predecessor-version":[{"id":31259,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/31258\/revisions\/31259"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=31258"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=31258"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=31258"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
The reaction will cause the evolution of ammonia gas.<\/strong><\/p>\n\n\n\n
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When ammonium nitrate (NH\u2084NO\u2083)<\/strong> is mixed with sodium hydroxide (NaOH)<\/strong> in an aqueous solution, a chemical reaction<\/strong> occurs that produces ammonia gas (NH\u2083)<\/strong>, water (H\u2082O)<\/strong>, and sodium nitrate (NaNO\u2083)<\/strong>.<\/p>\n\n\n\n