[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fZj5uG31ecFFLOEagFKE5faLaOm_d36dPo8jMBUB6iqc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-04-28 16:58:02",353726322,[8,9,10,11],"突跃范围","指示剂变色范围","指示剂颜色变化","指示剂的结构",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","酸碱滴定中选择指示剂时可不考虑的因素是",[18,29,38,47,56,65,74,83,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],353726315,[22,23,24,25],"HCO3-","CO32-","HPO42-","HC2O4-","根据质子理论,下列物质中不是两性物质的是","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],353726316,[33,34,35,36],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1c3dc5fa13b5801fb6a80ffcb3a88c8e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb6f944837a9a86129db613b6341047a8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F99a5e151f6a26aa370a89bb30b947c04.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F457a50f02feca16957000c081b283b8b.png\">","100 mL 0.1mol·L-1NH3·H2O(pKb= 4.74)中慢慢滴入等浓度的HCl标准溶液100 mL时,溶液的c(H+)为",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],353726317,[42,43,44,45],"H3PO4","1\u002F2H3PO4","1\u002F3H3PO4","2H3PO4","用NaOH标准溶液滴定H3PO4溶液时,选酚酞作指示剂,则H3PO4的基本计量单元是",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],353726318,[51,52,53,54],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F99e21566a2715447b02977878bc00174.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbdaae90f234e2042e7e536aa4bea3632.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9963bffbcd6ed57fbf1a39be238742ee.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5a6707cc7e1bd9e4ab29e65c67e03f16.png\">","下列多元酸,用NaOH标准溶液滴定时出现两个明显滴定突跃的是",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],353726319,[60,61,62,63],"甲酸 (pKa=3.75)","硫酸 (pKa2=1.92)","乙酸 (pKa=4.75)","草酸 (pKa1=1.23 pKa2=4.19)","以甲基红为指示剂,能用NaOH标准溶液准确滴定的酸是",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],353726320,[69,70,71,72],"偏高","偏低","无影响","前三种都有可能","用HCl标准溶液测定吸有CO2的NaOH溶液时(用HCl滴定NaON),选酚酞指示剂,测定结果将",{"answer":75,"createTime":5,"id":76,"options":77,"question":82,"source":27,"type":28},[],353726321,[78,79,80,81],"消耗NaOH多","突跃范围大","化学计量点pH较高","指示剂变色不敏锐","用同一NaOH标准溶液滴定相同浓度的不同的一元弱酸,则Ka较大的一元弱酸",{"answer":84,"createTime":5,"id":6,"options":85,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],353726323,[90,91,92,93],"9.7~4.3","9.7~5.3","8.7~4.3","8.7~5.3","用0.10 mol·L-1 HCl滴定0.10 mol·L-1 NaOH溶液,pH值突跃范围是9.7~4.3.用0.010 mol·L-1HCl滴定0.010 mol·L-1NaOH溶液时,pH值突跃范围是",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],353726324,[99,100,101,102],"高","低","不变","不能确定","氢氧化钠溶液的标签浓度为0.3000 mol·L-1,该溶液从空气中吸收了少量的CO2,现以酚酞为指示剂,用标准盐酸溶液标定,标定结果比标签浓度"]