{"id":"chemia-2010-styczen-probna-rozszerzona/zad/13","paper_id":"chemia-2010-styczen-probna-rozszerzona","number":"13","points":2,"ptype":"open","subject":"chemia","category":"probna","year":2010,"month":"styczen","level":"rozszerzona","text":"Zadanie 13. (2pkt)\nOblicz pH roztworu wodorotlenku wapnia, zawierającego 0,037 g Ca(OH)2 w 100 cm3\nroztworu.\nObliczenia:\nOdpowiedź:.","answer":null,"answer_text":null,"solution":"M(Ca(OH)₂)=74 g/mol. n=0,037/74=0,0005 mol. V=0,1 dm³. c=0,0005/0,1=0,005 mol/dm³. [OH⁻]=2×0,005=0,01 mol/dm³. pOH=2. pH=14-2=12.","image":"img/chemia-2010-styczen-probna-rozszerzona/zad-13.webp","solution_image":null,"topics":null,"page_from":7,"source":"ai","answer_source":null,"answer_text_source":null,"solution_source":"ai","text_source":"ocr","source_label":"Chemia · Matura próbna · styczeń 2010 (rozszerzona)","subject_label":"Chemia","category_label":"Matura próbna","text_html":"<p>Zadanie 13. (2pkt)<br>Oblicz pH roztworu wodorotlenku wapnia, zawierającego 0,037 g Ca(OH)2 w 100 cm3<br>roztworu.<br>Obliczenia:<br>Odpowiedź:.</p>","solutions":[{"source":"ai","label":"AI","kind":"text","html":"<p>M(Ca(OH)₂)=74 g/mol. n=0,037/74=0,0005 mol. V=0,1 dm³. c=0,0005/0,1=0,005 mol/dm³. [OH⁻]=2×0,005=0,01 mol/dm³. pOH=2. pH=14-2=12.</p>"}]}