Archives

{“questions”:{“48dkl”:{“id”:”48dkl”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2004\r\n\r\n \r\nIn che rapporto deve essere diluita una soluzione acquosa di un acido forte affinch\u00e9 il pH passi da 4 a 5?\r\n“,”desc”:””,”hint”:””,”answers”:{“cv6oe”:{“id”:”cv6oe”,”image”:””,”imageId”:””,”title”:”A) 1:10″,”isCorrect”:”1″},”mv3br”:{“id”:”mv3br”,”image”:””,”imageId”:””,”title”:”B) 4:5″},”qsyak”:{“id”:”qsyak”,”image”:””,”imageId”:””,”title”:”C) 1:1″},”q1dht”:{“id”:”q1dht”,”image”:””,”imageId”:””,”title”:”D) 5:4″},”00icp”:{“id”:”00icp”,”image”:””,”imageId”:””,”title”:”E) 1:9″}}}},”results”:{“ulrwu”:{“id”:”ulrwu”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Per …

{“questions”:{“yqhwc”:{“id”:”yqhwc”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 2001\r\n\r\n \r\nSe si diluisce 1 L di soluzione acquosa a pH=2, aggiungendo acqua fino al volume di 10 L, il pH:\r\n“,”desc”:””,”hint”:””,”answers”:{“k9sj6”:{“id”:”k9sj6″,”image”:””,”imageId”:””,”title”:”A) diventa 10″},”sy27m”:{“id”:”sy27m”,”image”:””,”imageId”:””,”title”:”B) diventa 1″},”nmdmy”:{“id”:”nmdmy”,”image”:””,”imageId”:””,”title”:”C) diventa 2.1″},”enh8e”:{“id”:”enh8e”,”image”:””,”imageId”:””,”title”:”D) non …

{“questions”:{“a6mf8”:{“id”:”a6mf8″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1999\r\n\r\n \r\nA quale volume bisogna diluire 10 mL di HCl 6 M per ottenere HCl 0,5 M ?\r\n“,”desc”:””,”hint”:””,”answers”:{“ehmar”:{“id”:”ehmar”,”image”:””,”imageId”:””,”title”:”A) 60 mL”},”zdipm”:{“id”:”zdipm”,”image”:””,”imageId”:””,”title”:”B) 30 mL”},”f8drr”:{“id”:”f8drr”,”image”:””,”imageId”:””,”title”:”C) 300 mL”},”z4akq”:{“id”:”z4akq”,”image”:””,”imageId”:””,”title”:”D) 120 mL”,”isCorrect”:”1″},”p8e65″:{“id”:”p8e65″,”image”:””,”imageId”:””,”title”:”E) 200 mL”}}}},”results”:{“ho8nb”:{“id”:”ho8nb”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” …

{“questions”:{“1j08h”:{“id”:”1j08h”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nOdontoiatria 1999\r\n\r\n \r\nSe un litro di soluzione acquosa di HCl a pH = 4 viene diluito con acqua a 10 litri, il pH della soluzione ottenuta \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“rdcn0”:{“id”:”rdcn0″,”image”:””,”imageId”:””,”title”:”A) 0,4″},”q30q7″:{“id”:”q30q7″,”image”:””,”imageId”:””,”title”:”B) 14″},”pmoyx”:{“id”:”pmoyx”,”image”:””,”imageId”:””,”title”:”C) …

{“questions”:{“lfe9o”:{“id”:”lfe9o”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 1998\r\n\r\n \r\nSe si vuole ottenere una soluzione acquosa a pH=4 partendo da una soluzione acquosa a pH=2, un litro di quest’ultima va diluito con acqua fino a:\r\n“,”desc”:””,”hint”:””,”answers”:{“lgfq1”:{“id”:”lgfq1″,”image”:””,”imageId”:””,”title”:”A) 100 …

{“questions”:{“jod9k”:{“id”:”jod9k”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2008\r\n\r\n \r\nIn una titolazione di 25ml di una soluzione di HCl ( acido cloridrico) sono stati utilizzati 11,5ml di NaOH (idrossido di sodio) 0,2M. Qual \u00e8 la concentrazione …

{“questions”:{“52yr4”:{“id”:”52yr4″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2007\r\n\r\n \r\nSe un soluzione acquosa di HCl (1 L) avente pH = 4 viene diluita con acqua a un volume dieci volte maggiore (a 10 L), il pH …

{“questions”:{“m2i57”:{“id”:”m2i57″,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nMedicina 2013\r\n\r\n \r\nQuale delle seguenti soluzioni acquose \u00e8 la pi\u00f9 acida?\r\n“,”desc”:””,”hint”:””,”answers”:{“21hmg”:{“id”:”21hmg”,”image”:””,”imageId”:””,”title”:”A) 2M HNO3“},”hii69”:{“id”:”hii69″,”image”:””,”imageId”:””,”title”:”B) 1M H2SO4“},”2nd2f”:{“id”:”2nd2f”,”image”:””,”imageId”:””,”title”:”C) 2M HCOOH”},”c0chf”:{“id”:”c0chf”,”image”:””,”imageId”:””,”title”:”D) 3M HCl”,”isCorrect”:”1″},”85bi6″:{“id”:”85bi6″,”image”:””,”imageId”:””,”title”:”E) 3M CH3COOH”}}}},”results”:{“qppgj”:{“id”:”qppgj”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Escludiamo da subito le risposte C) ed E) …

{“questions”:{“1ys0z”:{“id”:”1ys0z”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\np.san 2004\r\n\r\n \r\nIl PH di una soluzione 0,01 M di HCl \u00e8:\r\n“,”desc”:””,”hint”:””,”answers”:{“t7yc1”:{“id”:”t7yc1″,”image”:””,”imageId”:””,”title”:”A) 2″,”isCorrect”:”1″},”2zua8″:{“id”:”2zua8″,”image”:””,”imageId”:””,”title”:”B) 1″},”gvt88″:{“id”:”gvt88″,”image”:””,”imageId”:””,”title”:”C) 3″},”esf4e”:{“id”:”esf4e”,”image”:””,”imageId”:””,”title”:”D) 10-2“},”ebj8c”:{“id”:”ebj8c”,”image”:””,”imageId”:””,”title”:”E) 0,5″}}}},”results”:{“vne2n”:{“id”:”vne2n”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Per affrontare il quiz dobbiamo riconoscere che HCl , l’acido cloridrico, \u00e8 …

{“questions”:{“19u8t”:{“id”:”19u8t”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:” \r\nVeterinaria 2010\r\n\r\n \r\nQuale delle seguenti soluzioni \u00e8 quella pi\u00f9 basica?\r\n“,”desc”:””,”hint”:””,”answers”:{“1gz0d”:{“id”:”1gz0d”,”image”:””,”imageId”:””,”title”:”A) KOH 0,01 M “},”1i0e6”:{“id”:”1i0e6″,”image”:””,”imageId”:””,”title”:”B) KOH 0,1 M”},”mq740″:{“id”:”mq740″,”image”:””,”imageId”:””,”title”:”C) NaOH 1 M”,”isCorrect”:”1″},”aa6a2″:{“id”:”aa6a2″,”image”:””,”imageId”:””,”title”:”D) NaOH 10-3 M”},”jw7y8″:{“id”:”jw7y8″,”image”:””,”imageId”:””,”title”:”E) LiOH 10-4 M”}}}},”results”:{“cx2hu”:{“id”:”cx2hu”,”title”:””,”image”:””,”imageId”:””,”min”:”0″,”max”:”1″,”desc”:” Nelle risposte sono …