[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fYwcog3eATwF-Wec5ZgtzgiP7Kq24M3MV5yfB2jPmzOY":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-12-06 15:59:29",169343947,[8,9,10,11],"20x3+Red4⇌2Red3+Ox4","Ox2+2Red4⇌Red2+2Ox4","20x2+Red3⇌2Red2+0x3","Ox1+2Red4⇌Red1+20x4",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},273,"a6ae4dcdd514021cc968e89ee8bdf7cf","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","2024-2025学年第一学期分析化学","work_36664923","新建作业20231206104842","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).已知:\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6213ecec71838522fc650ece25a05869.png\">x1\u002FRed1=1.14V,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6213ecec71838522fc650ece25a05869.png\">x2\u002FRed2=0.85V,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6213ecec71838522fc650ece25a05869.png\">x3\u002FRed3=0.76V,\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6213ecec71838522fc650ece25a05869.png\">x4\u002FRed4=0.62V,下列反应(反应中电子转移数为2)可视为进行完全的是",[21,32,41,50,59,68,77,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],169343941,[25,26,27,28],"Mg2+量","Ca2+量","Ca2+.Mg2+总量","Ca2+.Mg2+.Fe3+.Al3+总量","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).某溶液主要含有Ca2+.Mg2+及少量Fe3+.Al3+将溶液pH调至约为10后加入三乙醇胺,以EDTA滴定,用铬黑T为指示剂,则测出的是","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],169343942,[36,37,38,39],"防止干扰","控制溶液的pH","使金属离子指示剂变色更敏锐","加大反应速率","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).EDTA滴定Zn2+时,加入NH3-NH4Cl的作用是",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],169343943,[45,46,47,48],"游离金属指示剂的颜色","EDTA与待测金属离子形成配合物的颜色","金属指示剂与待测金属离子形成配合物的颜色","上述A与C的混合色","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).配位滴定终点所呈现的颜色是",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],169343944,[54,55,56,57],"直接滴定","间接滴定","返滴定","连续滴定","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).用EDTA测定\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd487f582a94723c1edb9855c7cf65c34.png\">时,应采用的方法是",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],169343945,[63,64,65,66],"指示剂不稳定","MIn溶解度小","K'MIn<K'MY","K'MIn>K'MY","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).产生金属指示剂的封闭现象是因为",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],169343946,[72,73,74,75],"慢→快→慢","快→慢→慢","始终缓慢滴定","始终较快滴定","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).用KMmO4溶液滴定时,选择的滴定方式是",{"answer":78,"createTime":5,"id":6,"options":79,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],169343948,[84,85,86,87],"氧化还原滴定突跃的大小","氧化还原反应的速度","氧化还原反应的方向","氧化还原反应的次序","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).用相关电对的电极电位不能判断",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],169343949,[93,94,95,96],"芳伯胺类化合物","芳仲胺类化合物","硼砂","胆矾","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).用重氮化法测定的化合物是",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],169343950,[102,103,104,105],"1.0x109","1.0x108","1.0x107","1.0x106","单选.多选题选项内容不可重复,且选项与选项之间不要有空行.答案支持两种录入方式:(1)答案可在()内标出,答案必须为英文字母,多选题需输入多个英文字母(至少2个字母),如:题干(ABD)或题干(A);(2)"'答案:'+答案内容"(如:答案:ABC).对于反应:0x1+Red2⇌Red1+Ox2(n1=n2=1).能用于氧化还原滴定分析的平衡常数至少应为"]