[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fpuwQFZLaQ0_9wv0ui8uRFCM0Tr7UU3M5XlfV3dBmjmI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2025-12-25 13:12:59",285935238,[8,9,10,11],"NaOH","Na2CO3","Na2CO3 + NaHCO3","NaOH + Na2CO3",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","某混合碱先用HCl滴至酚酞变色,消耗V1mL,继续用甲基橙为指示剂滴至终点,耗去HCl V2 mL,已知V1>V2>0,则其组成是( )",[18,29,38,47,56,65,68,76,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],285935233,[22,23,24,25],"沉淀掩蔽法","配位掩蔽法","解蔽法","氧化还原掩蔽法","水硬度测定时,若只测定其中的Ca2+含量,为消除Mg2+干扰,常采用的简便方法是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],285935234,[33,34,35,36],"H2C2O4·2H2O","HCl","H2O2","H2SO4","可用来标定NaOH溶液的基准物质为( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],285935235,[42,43,44,45],"浓度大的突跃大","相同","无法判断","浓度小的突跃小","氧化还原滴定分析中,用0.01000 mol·L-1 Sn2+ 溶液滴定0.01000 mol·L-1 Fe3+溶液和用0.1000 mol·L-1 Sn2+ 溶液滴定0.1000 mol·L-1 Fe3+溶液,两种情况下滴定突跃将( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],285935236,[51,52,53,54],"lg\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F802f8410cf931079c638b248dbad0c98.png\">≤8","lg\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F802f8410cf931079c638b248dbad0c98.png\">≥8","lg\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F802f8410cf931079c638b248dbad0c98.png\">≥6","lg\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F802f8410cf931079c638b248dbad0c98.png\">≤6","配位滴定中,单一金属离子能够被EDTA准确测定的判据是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],285935237,[60,61,62,63],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4da7c4cda86b381bc84a97ec9ae13d20.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F929c740d67a8e9232cead5a2a51a9076.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc24f6ae9d8f5551183fc5fb55c8c78b1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe763bf296c9ffa98322e219119065f50.png\">","对于可逆对称电对组成的滴定反应\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fee1fb697b104d3dc494303dbc23608a8.png\">,化学计量点时电极电势为( )",{"answer":66,"createTime":5,"id":6,"options":67,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":69,"createTime":5,"id":70,"options":71,"question":75,"source":27,"type":28},[],285935239,[72,73,74],"不变","增大","减小","对于浓度一定的某金属离子,若溶液酸度增大,将使滴定突跃范围( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":27,"type":28},[],285935240,[80,81,82,83],"0.45","16.95","16.50","16.05","EDTA与Zn2+形成的配合物在pH=10时的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4a6d93bc42a2aecaca1cfe0247fbfba8.png\">为( )\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fad76c9f91bd4762c269eafb4c1b6e9b8.png\">",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":27,"type":28},[],285935241,[89,90,91,92],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd66f1677d1822889b76b58f1ebfdfcf8.png\">≥8","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd66f1677d1822889b76b58f1ebfdfcf8.png\">≤6","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd66f1677d1822889b76b58f1ebfdfcf8.png\">≥6","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd66f1677d1822889b76b58f1ebfdfcf8.png\">≥5","溶液中同时存在浓度均为0.01 mol·L-1 的M、N两种金属离子时,准确滴定M,而N不干扰的条件是( )",{"answer":95,"createTime":5,"id":96,"options":97,"question":102,"source":27,"type":28},[],285935242,[98,99,100,101],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a9e0bd7aca445eeba051ba29477d988.png\">与突跃的大小无关","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a9e0bd7aca445eeba051ba29477d988.png\">愈大,则突跃范围愈窄","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a9e0bd7aca445eeba051ba29477d988.png\">愈大,则突跃范围愈宽","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a9e0bd7aca445eeba051ba29477d988.png\">愈小,则突跃范围愈宽","用强酸滴定弱碱时,突跃范围与弱碱的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7a9e0bd7aca445eeba051ba29477d988.png\">的关系是( )"]