{"id":2405,"date":"2018-01-15T18:45:07","date_gmt":"2018-01-15T17:45:07","guid":{"rendered":"http:\/\/agora.xtec.cat\/esc-elfar\/?p=2405"},"modified":"2018-01-15T21:30:20","modified_gmt":"2018-01-15T20:30:20","slug":"la-col-llombarda-com-a-a-indicador-del-ph","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/esc-elfar\/nivells\/la-col-llombarda-com-a-a-indicador-del-ph\/","title":{"rendered":"La col llombarda com a indicador del PH"},"content":{"rendered":"

A la darrera sessi\u00f3 d’experimentaci\u00f3\u00a0els alumnes de cicle mitj\u00e0 hem realitzat un experiment molt vist\u00f3s. Per fer-lo hem utilitzat: vinagre, llet, aigua, lleixiu, bicarbonat, suc de llimona i col llombarda.<\/p>\n

En diferents recipients hem dipositat: suc de llimona, vinagre, aigua amb bicarbonat, llet, lleixiu i aigua. Tot seguit, curosament, amb la pipeta hem afegit suc de col llombarda. Al cap de pocs minuts… cada recipient ha aconseguit un color molt diferent.<\/p>\n

La col llombarda \u00e9s un indicador del PH. Per tant, aplicant-lo hem pogut detectar quins elements s\u00f3n \u00e0cids i quins bases. Amb les reaccions, hem comprovat com\u00a0la llimona i el vinagre s\u00f3n \u00e0cids\u00a0ja que\u00a0han obtingut un color m\u00e9s vermell\u00f3s. L’aigua i la llet s\u00f3n neutres, perqu\u00e8 han mantingut\u00a0un color m\u00e9s blav\u00f3s, lil\u00f3s, semblant al de la col llombarda. I tant l’aigua amb bicarbonat com el lleixiu han obtingut un to groguenc i verd\u00f3s, perqu\u00e8 s\u00f3n bases.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

A la darrera sessi\u00f3 d’experimentaci\u00f3\u00a0els alumnes de cicle mitj\u00e0 hem realitzat un experiment molt vist\u00f3s. Per fer-lo hem utilitzat: vinagre, llet, aigua, lleixiu, bicarbonat, suc de llimona i col llombarda.
\nEn diferents recipients hem dipositat: suc de llimona, vinagre, aigua amb bicarbonat, llet, lleixiu i aigua.… Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":7,"featured_media":2420,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[109,1],"tags":[74,75,71,61,55],"class_list":["post-2405","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-experimentacio","category-nivells","tag-3r","tag-4t","tag-cm","tag-primaria","tag-experimentacio"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2405","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/comments?post=2405"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2405\/revisions"}],"predecessor-version":[{"id":2428,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/posts\/2405\/revisions\/2428"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media\/2420"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/media?parent=2405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/categories?post=2405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/esc-elfar\/wp-json\/wp\/v2\/tags?post=2405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}