{"id":538,"date":"2020-03-17T18:27:37","date_gmt":"2020-03-17T18:27:37","guid":{"rendered":"http:\/\/institutviladomat.cat\/portfoli\/16albasamso\/?p=538"},"modified":"2020-03-17T18:27:38","modified_gmt":"2020-03-17T18:27:38","slug":"403-pluja-acida-ph-productes-quotidians","status":"publish","type":"post","link":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/2020\/03\/17\/403-pluja-acida-ph-productes-quotidians\/","title":{"rendered":"403  Pluja \u00e0cida, pH productes quotidians"},"content":{"rendered":"\n<p><strong>Qu\u00e8 hem fet?<\/strong><\/p>\n\n\n\n<p>A la classe de fisica i quimica vam fer una pr\u00e0ctica anomenada &#8220;La pluja d&#8217;or&#8221;. Aquesta pr\u00e0ctica consisteix en que a partir d&#8217;una reacci\u00f3 de precipitaci\u00f3 puguem  observar la formaci\u00f3 de dos s\u00f2lids diferents.<\/p>\n\n\n\n<p>Per obtenir la pluja d&#8217;or hem de tenir dues dissolucions diferents. La primera \u00e9s una dissoluci\u00f3 feta d&#8217;aigua (20 ml) i de nitrat de plom (10 g\/l), i l&#8217;altra dissoluci\u00f3 feta de iodur de potassi (40 ml) (Concentraci\u00f3 amb una 10 g\/L). Un cop tenim les mescles fetes aboquem el KI a la dissoluci\u00f3 de Pb(NO<sub>3<\/sub>)<sub>2<\/sub>.  Despr\u00e9s podem observar com es formava un precipitat, el qual canvia de color. Tot seguit escalfem el vas fins quedar la dissoluci\u00f3 transparent. Finalment deixar refredar la dissoluci\u00f3 i vam observar com es va produir la pluja d\u2019or.<\/p>\n\n\n\n<p><strong>Qu\u00e8 hem apr\u00e8s?<\/strong><\/p>\n\n\n\n<p>He apr\u00e8s que quan fas reaccionar dos components incolors generen un producte de qualsevol color i que \u00e9s una reacci\u00f3 reversible.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qu\u00e8 hem fet? A la classe de fisica i quimica vam fer una pr\u00e0ctica anomenada &#8220;La pluja d&#8217;or&#8221;. Aquesta pr\u00e0ctica consisteix en que a partir d&#8217;una reacci\u00f3 de&#8230;<\/p>\n","protected":false},"author":125,"featured_media":539,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/posts\/538"}],"collection":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/users\/125"}],"replies":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/comments?post=538"}],"version-history":[{"count":1,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/posts\/538\/revisions"}],"predecessor-version":[{"id":540,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/posts\/538\/revisions\/540"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/media\/539"}],"wp:attachment":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/media?parent=538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/categories?post=538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16albasamso\/wp-json\/wp\/v2\/tags?post=538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}