{"id":9873,"date":"2025-02-12T13:23:00","date_gmt":"2025-02-12T12:23:00","guid":{"rendered":"https:\/\/agora.xtec.cat\/iesperefontdevila\/?p=9873"},"modified":"2025-07-27T09:43:25","modified_gmt":"2025-07-27T07:43:25","slug":"fem-quimica-als-laboratoris-de-la-facultat-de-la-universitat-de-barcelona","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iesperefontdevila\/portada\/fem-quimica-als-laboratoris-de-la-facultat-de-la-universitat-de-barcelona\/","title":{"rendered":"Fem Qu\u00edmica als laboratoris de la Facultat de la Universitat de Barcelona"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:575px\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"570\" height=\"428\" src=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2025\/02\/facultat_quimica_2025.jpg\" alt=\"\" class=\"wp-image-9881\" srcset=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2025\/02\/facultat_quimica_2025.jpg 570w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2025\/02\/facultat_quimica_2025-300x225.jpg 300w, https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2025\/02\/facultat_quimica_2025-200x150.jpg 200w\" sizes=\"auto, (max-width: 570px) 100vw, 570px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:102px\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/photos.app.goo.gl\/Qez2ERTDY5VRLyoY9\"><img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"82\" src=\"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-content\/uploads\/usu203\/2022\/03\/camera2.png\" alt=\"\" class=\"wp-image-7085\"\/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>Dijous passat l&#8217;alumnat de Qu\u00edmica de 1r i 2n de Batxillerat vam poder gaudir d&#8217;una jornada molt profitosa a la<strong>\u00a0Facultat de Qu\u00edmica de la Universitat de Barcelona<\/strong>. Vam visitar diverses zones de la facultat i vam portar a terme diferents experiments als laboratoris. A continuaci\u00f3 us expliquem alguns detalls sobre les experimentacions que vam portar a terme:\u00a0<\/p>\n\n\n\n<p>&#8211;&nbsp;<em>El rac\u00f3 del fred<\/em>: Vam&nbsp;experimentar amb tres subst\u00e0ncies (gel, neu carb\u00f2nica i nitrogen l\u00edquid) i vam poder observar els canvis de fase (s\u00f2lid-l\u00edquid, s\u00f2lid-gas,&nbsp;l\u00edquid-gas) dels sistemes i els efectes de les baixes temperatures sobre les propietats&nbsp;d\u2019alguns&nbsp;materials.<\/p>\n\n\n\n<p>&#8211;&nbsp;<em>Identifiquem analg\u00e8sics<\/em>: mitjan\u00e7ant la t\u00e8cnica de la cromatografia en capa prima vam poder identificar els principis actius en diferents productes farmac\u00e8utics (aspirina, gelocatil,&#8230;)<br>&#8211;&nbsp;<em>Il\u00b7lumina l&#8217;escena del crim<\/em>: La qu\u00edmica forense \u00e9s una branca de la qu\u00edmica que analitza, classifica i determina la naturalesa dels elements i subst\u00e0ncies relacionats amb els fets delictius. En qu\u00edmica forense \u00e9s com\u00fa l\u2019an\u00e0lisi de taques de sang, fluids corporals, cabells, fibres, ADN i verins. Al laboratori vam poder identificar quatre mostres que contenien un dels seg\u00fcents compostos: alb\u00famina, hemoglobina, glucosa i lleixiu. Tres d&#8217;aquests components es troben a la sang i el quart serveix per a netejar l&#8217;escena del crim. Vam utilitzar, per una banda el luminol que d\u00f3na lloc a luminesc\u00e8ncia quan reacciona amb alguns d&#8217;aquests compostos, i d&#8217;altra el reactiu de Bradford, que permet identificar prote\u00efnes.<br>&#8211;&nbsp;<em>Reaccions a petita escala<\/em>: vam realitzar un conjunt d\u2019experiments en tub d\u2019assaig i vam observar diferents canvis com ara l&#8217;aparici\u00f3 o la desaparici\u00f3 d&#8217;un color, l&#8217;aparici\u00f3 i aspecte d&#8217;una fase s\u00f2lida, l\u2019alliberament d\u2019un gas, etc. fets que ens indiquen que s&#8217;ha produ\u00eft una reacci\u00f3 qu\u00edmica.<br>&#8211;&nbsp;<em>La qu\u00edmica de casa teva<\/em>: vam identificar alguns productes qu\u00edmics presents a la llar a partir de lla determinaci\u00f3 del pH d\u2019algunes de les mostres i de l&#8217;estudi del fenomen de la fluoresc\u00e8ncia, emissi\u00f3 de radiaci\u00f3 visible d\u2019algunes subst\u00e0ncies quan es posen sota llum ultraviolada. <\/p>\n\n\n\n<p>Aquesta experi\u00e8ncia ens ha perm\u00e8s prendre consci\u00e8ncia de la import\u00e0ncia que t\u00e9 la qu\u00edmica en el nostre dia a dia.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-2 wp-block-columns-is-layout-flex\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3 wp-block-columns-is-layout-flex\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Dijous passat l&#8217;alumnat de Qu\u00edmica de 1r i 2n de Batxillerat vam poder gaudir d&#8217;una jornada molt profitosa a la\u00a0Facultat de Qu\u00edmica de la Universitat de Barcelona. Vam visitar diverses zones de la facultat i vam portar a terme diferents experiments als laboratoris. A continuaci\u00f3 us expliquem alguns detalls sobre les experimentacions que vam portar [&hellip;]<\/p>\n","protected":false},"author":227,"featured_media":9881,"comment_status":"open","ping_status":"open","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,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[29,130,131,68,237,238],"tags":[],"class_list":["post-9873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-portada","category-1bat","category-2bat","category-ciencies-experimentals","category-promocio_2019-25","category-promocio_2020-26"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/9873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/users\/227"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/comments?post=9873"}],"version-history":[{"count":4,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/9873\/revisions"}],"predecessor-version":[{"id":11012,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/posts\/9873\/revisions\/11012"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/media\/9881"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/media?parent=9873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/categories?post=9873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesperefontdevila\/wp-json\/wp\/v2\/tags?post=9873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}