[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-an0VV4tKaWlLvczvOgYvoTgXn2vqsOsAXD4Kz1AV5M":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":16,"related":17,"source":27,"type":97},[],"2023-05-08 10:28:06",83565254,[8,9],"对","错",{"courseId":11,"courseImg":12,"courseName":13,"workId":14,"workName":15},"1000011490","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3caf873b9a1a5caf9ba2f379da524af3.png","分析化学（兰州大学）","27596482","分析化学（兰州大学）教程考试","分析工作中常用的"%"是质量分数的习惯表示方法",[18,29,38,47,56,65,74,83,92,98],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],83565222,[22,23,24,25],"沉淀的溶解度必须足够小","沉淀必须具有恒定的化学组成","沉淀应尽可能纯净","沉淀应易于转化为称量形式","下列有关重量分析法对沉淀形式的要求叙述错误的是( )","v2",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],83565223,[33,34,35,36],"称量形式的化学组成必须恒定","称量形式必须十分稳定","称量形式的摩尔质量越大分析结果越准确","称量形式必须为颗粒粗大的晶型沉淀","下列有关重量分析法对称量形式的要求叙述错误的是( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],83565224,[42,43,44,45],"固有溶解度仅与温度有关","固有溶解度是指在溶液中以分子状态或离子对状态存在的微溶化合物的浓度","固有溶解度又称分子溶解度","微溶化合物MA的固有溶解度在数值上等于aMA(水)","下列有关固有溶解度叙述错误的是( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],83565225,[51,52,53,54],"一般来讲,物质溶解度随温度增高而增加","同种沉淀物,其小颗粒的溶解度小于大颗粒","同种沉淀物,其表面积愈大溶解度愈大","陈化作用对一样大小的沉淀颗粒不起作用","下列有关沉淀溶解度叙述错误的是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],83565235,[60,61,62,63],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2264d12cfd2486394c38daa7ef765fb7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffbcf39ee7a035e371ea863f51fd22c6a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F11298bfa17e303069424ab91553dd4eb.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F840a653c33a2f2e6c2f369d24fa71960.png\">","哪个反应的滴定曲线在化学计量点前后是对称的( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],83565240,[69,70,71,72],"Cu(II)可被EDTP准确滴定","Zn(II)可被EDTP准确滴定","Cd(II)可被EDTP准确滴定","Mn(II)可被EDTP准确滴定","已知金属离子Cu(II)、Zn(II)、Cd(II)、Mn(II)与乙二胺四丙酸(EDTP)的络合物的绝对稳定常数的对数因此为15.4、7.8、6.0、4.7,下列叙述错误的是( )",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":27,"type":28},[],83565243,[78,79,80,81],"偏低","偏高","无影响","不确定","以H2C2O4‧2H2O作基准物质,用来标定NaOH溶液的浓度.但因保存不当,草酸失去部分结晶水,问用此草酸标定NaOH溶液浓度的结果是( )",{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":27,"type":28},[],83565247,[87,88,89,90],"[M]:[EDTA]=1:1","一般易溶于水","稳定性很高","分子中一般含有多个五元环或六元环","下列关于EDTA与M形成的络合物性质叙述错误的是( )",{"answer":93,"createTime":5,"id":94,"options":95,"question":96,"source":27,"type":97},[],83565250,[8,9],"真值无法测出,因此真值不存在",3,{"answer":99,"createTime":5,"id":6,"options":100,"question":16,"source":27,"type":97},[],[8,9]]