{"id":511,"date":"2019-06-12T10:18:16","date_gmt":"2019-06-12T10:18:16","guid":{"rendered":"http:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/?p=511"},"modified":"2019-06-12T10:18:16","modified_gmt":"2019-06-12T10:18:16","slug":"metodes-de-separacio","status":"publish","type":"post","link":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/2019\/06\/12\/metodes-de-separacio\/","title":{"rendered":"M\u00e8todes de separaci\u00f3"},"content":{"rendered":"\n<p><strong>REACCIONS QU\u00cdMIQUES<\/strong><br><\/p>\n\n\n\n<p><strong>Pr\u00e0ctica 1 &#8211; Monedes<\/strong><br><\/p>\n\n\n\n<p><strong>Hip\u00f2tesis<\/strong><\/p>\n\n\n\n<p>Nosaltres creiem que el l\u00edquid canviara de color i segons el que ens diuen, la moneda perdr\u00e0 el seu coure.<br><\/p>\n\n\n\n<p><strong>Materials i productes<\/strong><\/p>\n\n\n\n<ul><li>Moneda 0.01\u20ac (2,3 grams)<\/li><li>\u00c0cid Ac\u00e8tic (26,2 grams) <\/li><li>Per\u00f2xid d\u2019Hidrogen (29,3 grams)<\/li><li>Vas de precipitats (115.6 grams)<\/li><\/ul>\n\n\n\n<p><strong>Procediment<\/strong> <\/p>\n\n\n\n<ol><li>Posem la moneda al fons del vas de precipitats.<\/li><li>Posem dins del vas 2 dits d\u2019\u00e0cid ac\u00e8tic (vinagre) i 2 dits de per\u00f2xid d\u2019hidrogen (aigua oxigenada).<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/tzMcz_FxbisCBFP8ks2ESX7OjhyWbmf330NCDNyJ3M2EzbeQZPywh_YRXzrXdTnANE_o6XDk9HMXt87GvDVoohJEnrfArylcJo3dLyHZpGXmGzOAFPjDLgJpJy-hqMDWryLxxyu_\" alt=\"\" \/><\/figure>\n\n\n\n<ol><li>Esperem un temps per veure el resultat.<\/li><\/ol>\n\n\n\n<p><strong>Conclusions<\/strong><\/p>\n\n\n\n<p>Al principi la moneda comen\u00e7a a bombollejar, quan treiem la moneda &nbsp;de la soluci\u00f3, es pot veure que aquesta ha perdut la brillantor i el color que li proporcionava el coure.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/Ey4kHqWizkzaQawsIchvdpf0tPF8tc4a1vXGBO_gezLjm7fzYYtPG_VMIfiuWqWtcgNsJgZ39Dwf4fj4Acrl6413OH5cBHXbZkJ-kVF5ENnOr80spjb6DoAdOuzCSR7Y4bcOkjGa\" alt=\"\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Pr\u00e0ctica 2 &#8211; El guant que s\u2019infla<\/strong><br><\/p>\n\n\n\n<p><strong>Hip\u00f2tesis<\/strong><\/p>\n\n\n\n<p>Amb la reacci\u00f3 de la barreja entre bicarbonat s\u00f2dic i l\u2019\u00e0cid ac\u00e8tic, es produir\u00e0 un gas que inflar\u00e0 el guant de l\u00e0tex.<br><\/p>\n\n\n\n<p><strong>Materials i productes<\/strong><\/p>\n\n\n\n<ul><li>Guant de l\u00e0tex (5,0 grams)<\/li><li>Vas de precipitats (104,9 grams)<\/li><li>Bicarbonat s\u00f2dic (5,0 grams)<\/li><li>\u00c0cid ac\u00e8tic (55,0 grams)<\/li><\/ul>\n\n\n\n<p><strong>Procediment<\/strong> <\/p>\n\n\n\n<ol><li>Omplim 50mm del vas de precipitats amb \u00e0cid ac\u00e8tic.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/1hKb1HExMyNHXep0rbjuUd2QdUfSlh9UllP5paORFu5ffUySJQcv_57ZU2fewpurO1uK_xXdSV0uWWjkuS7FBY0gECBiT8bf9aAk9nXRWWpOQ8Q75w1e_Xl_lxw0ypERjNq4_sb4\" alt=\"\" \/><\/figure>\n\n\n\n<ol><li>Omplim el guant de l\u00e0tex amb bicarbonat s\u00f2dic.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/qtEkEFTLlb_zNA5Az17yCvIl86fBGUxOJyaBpQ1zb53NBM68COeXOyipYFByVjq7uKiedCBxWMI1j3Rru-yhCKL5kjjZq3Ki9qwnxbgeV2x2hfjfw9ehrA7Gb2MJdu5AtFWsiiy-\" alt=\"\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/bbnuuBO7C4S2ZeE4m3HNs4Sjf4GhcmMaJXA21401zCSy34ZrWgPLAjuGHhjbi0N4znMNMy3x-iJsH9khbae4mcfjsy2eNlmMKGtyGz06mBWnfkhJdOXvcca8ZucWV-ndjx-TPpHO\" alt=\"\" \/><\/figure>\n\n\n\n<ol><li>Posem l\u2019entrada del guant a la boca del vas de precipitats abocant-hi doncs, el bicarbonat s\u00f2dic.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/cWu90dUgyqNv25EwNyJjIEfW4A0BvOSYR2FrJ-DdWXAQJ-zkudBNy8ABdwi_lBTG0Jd8XwmUQeY5nAYh0ZfxFhlDxGm6JHeSfch6fkwvFzT3JolwBo5COem73obm5qDED4RrNLVf\" alt=\"\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/VIqvy_Nfd9N9jip3iWNsX36IIUjtus4KFs6bQ3ubEhytGwvLqYCEOvIo0oAyTIjeHUDECH1QJDLo117P2nRd6qDGuUEq8DBc0u3r15qE4PEg1SE8OUjH6m2aPVFK9OE2fCfOQun2\" alt=\"\" \/><\/figure>\n\n\n\n<p><strong>Conclusions<\/strong><\/p>\n\n\n\n<p>Un cop es fa la mescla entre el bicarbonat s\u00f2dic i l\u2019\u00e0cid ac\u00e8tic, es produeix un gas que anir\u00e0 cap a dalt, cosa que far\u00e0 que el guant s\u2019infli.<br><\/p>\n\n\n\n<p><strong>Pr\u00e0ctica 3 &#8211; <\/strong><strong>Unes monedes ben netes<\/strong><br><\/p>\n\n\n\n<p><strong>Hip\u00f2tesis<\/strong><\/p>\n\n\n\n<p>La moneda perdr\u00e0 la brillantor que li proporcionava la capa de coure perqu\u00e8 s\u2019oxidar\u00e0 formant doncs, \u00f2xid de coure. Tamb\u00e9 creiem que el clau de ferro quedar\u00e0 recobert per una capa de coure.<br><\/p>\n\n\n\n<p><strong>Materials i productes<\/strong><\/p>\n\n\n\n<ul><li>Vas de precipitats (116 grams)<\/li><li>\u00c0cid ac\u00e8tic (45,4 grams)<\/li><li>Moneda 5 c\u00e8ntims (4 grams)<\/li><li>Un clau de ferro (0,7 grams)<\/li><\/ul>\n\n\n\n<p><strong>Procediment<\/strong> <\/p>\n\n\n\n<ol><li>Agafem les monedes que hauran perdut la brillantor dins de l\u2019\u00e0cid ac\u00e8tic.<\/li><li>Agafem un vas de precipitats i l\u2019omplim d\u2019\u00e0cid ac\u00e8tic, posem una moneda dins del vas.<\/li><li>Quan ja han passat uns 20 minuts treiem les monedes (amb unes pinces) i deixem l\u2019\u00e0cid ac\u00e8tic dins del vas.<\/li><li>Amb precauci\u00f3 aixuguem la moneda que havia estat submergida dins de l\u2019\u00e0cid ac\u00e8tic.<\/li><li>Agafem un clau de ferro dins del vas amb \u00e0cid ac\u00e8tic on anteriorment havia estat la moneda.<\/li><li>Al cap de 30 minuts aproximadament, retirem el clau de ferro de la soluci\u00f3 d\u2019\u00e0cid ac\u00e8tic. <\/li><\/ol>\n\n\n\n<p><strong>Conclusions<\/strong><\/p>\n\n\n\n<p>Quan treiem el clau de ferro del vas de precipitats, on hi havia la soluci\u00f3 d\u2019\u00e0cid ac\u00e8tic i \u00e9s dissolt el coure de la moneda, podem veure que el clau s\u2019ha cobert de l\u2019antic coure de la moneda i ha augmentat un 0,1 grams el seu pes.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Pr\u00e0ctica 4 &#8211; Subst\u00e0ncies \u00e0cides i b\u00e0siques en els productes de neteja<\/strong><br><\/p>\n\n\n\n<p><strong>Hip\u00f2tesis<\/strong><\/p>\n\n\n\n<p>Quan barregem els productes de neteja amb la soluci\u00f3 de la barreja d\u2019aigua i remolacha, es produir\u00e0 un color que ens servir\u00e0 per determinar el pH.<br><\/p>\n\n\n\n<p><strong>Materials i productes<\/strong><\/p>\n\n\n\n<ul><li>Vas de precipitats <\/li><li>4 tubs d\u2019assaig<\/li><li>Col de remolacha<\/li><li>Pipeta graduada<\/li><li>Gradeta<\/li><li>Productes: Sab\u00f3 de mans, Oxigen actiu, Treu el greix i Netejador antical<\/li><\/ul>\n\n\n\n<p><strong>Procediment<\/strong> <\/p>\n\n\n\n<ol><li>Posem uns quants mililitres a cada un dels tubs d\u2019assaig amb els productes.<\/li><li>Afegim a cada un dels tubs unes quantes gotes de l\u2019extracte de la remolacha<\/li><li>Observem els canvis de color de cada un dels tubs, per finalment deduir-ne el pH.<\/li><\/ol>\n\n\n\n<p>Basant-nos en la taula dels pH, aquests creiem que son els pH dels nostres experiments:<br><\/p>\n\n\n\n<table class=\"wp-block-table\"><tbody><tr><td>Sab\u00f3 de mans<\/td><td>4<\/td><\/tr><tr><td>Oxigen actiu<\/td><td>11<\/td><\/tr><tr><td>Treu el greix<\/td><td>9<\/td><\/tr><tr><td>Netejador antical<\/td><td>5<\/td><\/tr><\/tbody><\/table>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/YYJmE1jXHMx2W0jfzQlU4AlgfdxSF1AcFN1sWs4NKi9HE8pBqrNb5sb4qF7SvtiCUPUFg9Tjjmu_emp0yJ5TMGthjoIvA5CeSRtxuv0kxSR9i7NbW4Of2HmWsscbT9MDQ2-1l7_b\" alt=\"\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>REACCIONS QU\u00cdMIQUES Pr\u00e0ctica 1 &#8211; Monedes Hip\u00f2tesis Nosaltres creiem que el l\u00edquid canviara de color i segons el que ens diuen, la moneda perdr\u00e0 el seu coure. Materials&#8230;<\/p>\n","protected":false},"author":73,"featured_media":512,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[],"_links":{"self":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/posts\/511"}],"collection":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/users\/73"}],"replies":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/comments?post=511"}],"version-history":[{"count":1,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/posts\/511\/revisions"}],"predecessor-version":[{"id":513,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/posts\/511\/revisions\/513"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/media\/512"}],"wp:attachment":[{"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/media?parent=511"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/categories?post=511"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/institutviladomat.cat\/portfoli\/16oihanblasco\/wp-json\/wp\/v2\/tags?post=511"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}