{"id":"chemia-2020-marzec-politechnika-lodzka-probna-rozszerzona/zad/22","paper_id":"chemia-2020-marzec-politechnika-lodzka-probna-rozszerzona","number":"22","points":null,"ptype":"open","subject":"chemia","category":"probna","year":2020,"month":"marzec","level":"rozszerzona","text":"Zadanie 22\n[Mg\n] =\nmol/dm\n#24\nMATURY PRÓBNE 2020, chemia 3\n2+\n3\nMATURA PRÓBNA Z CHEMII\nMatura III 2019/2020 - chemia\nWydział Elektrotechniki, Elektroniki, Informatyki i Automatyki\n90-924 Łódź, ul. Stefanowskiego 18/22, budynek A10\ntel. 42 631 25 00, fax 42 636 47 02, e-mail: deanelec@adm.p.lodz.pl, www.weeia.p.lodz.pl\n17 / 32","answer":null,"answer_text":null,"solution":"Zasada electroneutrality: suma ładunków dodatnich = suma ładunków ujemnych. [K⁺] + 2[Ca²⁺] + 2[Mg²⁺] = [NO₃⁻] + [Cl⁻]. 0,3 + 2·0,15 + 2[Mg²⁺] = 0,4 + 0,3. 0,6 + 2[Mg²⁺] = 0,7. 2[Mg²⁺] = 0,1. [Mg²⁺] = 0,05 mol/dm³.","image":"img/chemia-2020-marzec-politechnika-lodzka-probna-rozszerzona/zad-22.webp","solution_image":null,"topics":null,"page_from":17,"source":"ai","answer_source":null,"answer_text_source":null,"solution_source":"ai","text_source":"ocr","source_label":"Chemia · Matura próbna · marzec 2020 (rozszerzona)","subject_label":"Chemia","category_label":"Matura próbna","text_html":"<p>Zadanie 22<br>[Mg<br>] =<br>mol/dm<br>#24<br>MATURY PRÓBNE 2020, chemia 3<br>2+<br>3<br>MATURA PRÓBNA Z CHEMII<br>Matura III 2019/2020 - chemia<br>Wydział Elektrotechniki, Elektroniki, Informatyki i Automatyki<br>90-924 Łódź, ul. Stefanowskiego 18/22, budynek A10<br>tel. 42 631 25 00, fax 42 636 47 02, e-mail: deanelec@adm.p.lodz.pl, www.weeia.p.lodz.pl<br>17 / 32</p>","solutions":[{"source":"ai","label":"AI","kind":"text","html":"<p>Zasada electroneutrality: suma ładunków dodatnich = suma ładunków ujemnych. [K⁺] + 2[Ca²⁺] + 2[Mg²⁺] = [NO₃⁻] + [Cl⁻]. 0,3 + 2·0,15 + 2[Mg²⁺] = 0,4 + 0,3. 0,6 + 2[Mg²⁺] = 0,7. 2[Mg²⁺] = 0,1. [Mg²⁺] = 0,05 mol/dm³.</p>"}]}