{"id":98,"date":"2024-10-24T21:01:31","date_gmt":"2024-10-25T01:01:31","guid":{"rendered":"https:\/\/sites.temple.edu\/chemdemo\/?p=98"},"modified":"2024-10-25T16:22:01","modified_gmt":"2024-10-25T20:22:01","slug":"cleaning-silver","status":"publish","type":"post","link":"https:\/\/sites.temple.edu\/chemdemo\/2024\/10\/24\/cleaning-silver\/","title":{"rendered":"Cleaning Silver"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Purpose<\/h2>\n\n\n\n<p>To demonstrate how the reactivity series is useful in cleaning tarnished silverware using a simple chemical process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Materials Needed<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Infomercial silver cleaning plates (for discussion)<\/li>\n\n\n\n<li>Aluminum baking pan<\/li>\n\n\n\n<li>Hot water<\/li>\n\n\n\n<li>Sodium carbonate<\/li>\n\n\n\n<li>Tarnished silver item (e.g., silver bell)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Procedure<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Discussion<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Briefly explain the infomercial silver cleaning products and how they utilize basic chemistry to create a profitable market.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Preparation<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Create a homemade cleaning solution using:\n<ul class=\"wp-block-list\">\n<li>Aluminum baking pan<\/li>\n\n\n\n<li>Hot water<\/li>\n\n\n\n<li>Sodium carbonate<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Cleaning Process<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Place the tarnished silver item (e.g., silver oxide or sulfide) inside the aluminum baking pan.<\/li>\n\n\n\n<li>Observe how the tarnish is removed quickly.<\/li>\n\n\n\n<li>Discuss the importance of electrical contact between items during the cleaning process.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Chemical Reactions<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Explain the formation of hydrogen sulfide, which contributes to the unpleasant smell.<\/li>\n\n\n\n<li>Discuss the role of sodium carbonate in providing a basic medium that helps dissolve the protective coating on aluminum and reduces odors.<\/li>\n\n\n\n<li>Emphasize that this method works best with very hot water.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Tarnishing Experiment<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>As an additional demonstration, tarnish silver by placing it in a ziplock bag with 1 g of sulfur to illustrate how tarnish forms.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>This demonstration effectively illustrates the principles of the reactivity series and its application in cleaning tarnished silver, showcasing the relevance of chemistry in everyday products.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Purpose To demonstrate how the reactivity series is useful in cleaning tarnished silverware using a simple chemical process. Materials Needed Procedure Conclusion This demonstration effectively&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/sites.temple.edu\/chemdemo\/2024\/10\/24\/cleaning-silver\/\">Continue Reading<span class=\"screen-reader-text\">Cleaning Silver<\/span><\/a><\/div>\n","protected":false},"author":36673,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-98","post","type-post","status-publish","format-standard","hentry","category-demonstrations","entry"],"_links":{"self":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/98","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/users\/36673"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":1,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/posts\/98\/revisions\/99"}],"wp:attachment":[{"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.temple.edu\/chemdemo\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}