{"id":2436,"date":"2022-01-28T08:25:26","date_gmt":"2022-01-28T07:25:26","guid":{"rendered":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/?p=2436"},"modified":"2022-01-28T08:25:26","modified_gmt":"2022-01-28T07:25:26","slug":"defi-quantite-de-matiere","status":"publish","type":"post","link":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/2022\/01\/28\/defi-quantite-de-matiere\/","title":{"rendered":"D\u00e9fi quantit\u00e9 de mati\u00e8re"},"content":{"rendered":"

Quantit\u00e9 de mati\u00e8re<\/b><\/u><\/span><\/span><\/p>\n

Parmi les \u00e9chantillons suivants, quel est celui qui contient la quantit\u00e9 de mati\u00e8re la plus importante ? Classer les \u00e9chantillons par ordre d\u00e9croissant en fonction de la quantit\u00e9 de mati\u00e8re.<\/i><\/span><\/p>\n

Echantillon A<\/u>\u00a0: 1,00 mg de fer<\/span><\/p>\n

Echantillon B<\/u>\u00a0: 416,0 L de diazote gazeux \u00e0 1000\u00b0C et p = 1 atm.<\/span><\/p>\n

Echantillon C<\/u>\u00a0: 2,0 g de sel de cuisine (NaCl (s)).<\/span><\/p>\n

Echantillon D<\/u>\u00a0: 1,0 L d\u2019ac\u00e9tone (C3<\/sub>H6<\/sub>O (l)).<\/span><\/p>\n

Echantillon E<\/u>\u00a0: 485 cm3<\/sup> de m\u00e9thane \u00e0 40 \u00b0C et p = 954,2 .102<\/sup> Pa<\/span><\/p>\n

Echantillon F<\/u>\u00a0: 3,1 g de dioxyg\u00e8ne \u00e0 20 \u00b0C et p = 1atm<\/span><\/p>\n

Echantillon G<\/u>\u00a0: 1,00 L de dihydrog\u00e8ne \u00e0 20 \u00b0C et p = 1 atm<\/span><\/p>\n

Echantillon H<\/u>\u00a0: 1,32 cm3<\/sup> de titane<\/span><\/p>\n

Echantillon I<\/u>\u00a0: 50,0 mL de solution aqueuse de glucose (C6<\/sub>H12<\/sub>O6<\/sub> (s)) de concentration molaire C=0,20 mol\/L<\/span><\/p>\n

Echantillon J<\/u>\u00a0: 10 L de dioxyg\u00e8ne \u00e0 18 \u00b0C et p = 1 atm<\/span><\/p>\n

Donn\u00e9es\u00a0:<\/b><\/i><\/span><\/p>\n

Classification p\u00e9riodique des \u00e9l\u00e9ments pour les masses molaires atomiques<\/span><\/span><\/p>\n

Volume molaire des gaz \u00e0 20 \u00b0C et p = 1atm\u00a0: Vm = 24,0 L\/mol<\/span><\/span><\/p>\n

Volume molaire des gaz \u00e0 1000\u00b0C et p = 1 atm\u00a0: Vm = 104,0 L\/mol<\/span><\/span><\/p>\n

Densit\u00e9 de l\u2019ac\u00e9tone\u00a0: d = 0,790<\/span><\/span><\/p>\n

Densit\u00e9 du titane\u00a0: d = 4,51<\/span><\/span><\/p>\n

R = 8,314 J.K<\/span>-1<\/span><\/sup>.mol<\/span>-1<\/span><\/sup><\/span><\/p>\n

1 atm = 1,013 . 10<\/span>5<\/span><\/sup> Pa<\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Quantit\u00e9 de mati\u00e8re Parmi les \u00e9chantillons suivants, quel est celui qui contient la quantit\u00e9 de mati\u00e8re la plus importante ? Classer les \u00e9chantillons par ordre d\u00e9croissant en fonction de la quantit\u00e9 de mati\u00e8re. Echantillon A\u00a0: 1,00 mg de fer Echantillon B\u00a0: 416,0 L de diazote gazeux \u00e0 1000\u00b0C et p = 1 atm. Echantillon C\u00a0: … Continuer la lecture de D\u00e9fi quantit\u00e9 de mati\u00e8re<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2436","post","type-post","status-publish","format-standard","hentry","category-non-classe"],"_links":{"self":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/2436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/comments?post=2436"}],"version-history":[{"count":2,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/2436\/revisions"}],"predecessor-version":[{"id":3373,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/posts\/2436\/revisions\/3373"}],"wp:attachment":[{"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/media?parent=2436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/categories?post=2436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/toulouse-sgencfdt.fr\/WORDPRESS_ITRF\/wp-json\/wp\/v2\/tags?post=2436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}