[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fzboOjaDzlbPFgklBy5r9tWYHdkkz2Mp10xbSmaKLNU0":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":29,"type":77},[],"2024-11-09 12:27:42",165127005,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},11,"4b7c2ccdfecb844108f52060b2ca0fff","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff176f7c718195dc39a8273b702e24629.png","无机及分析化学","290c6f4164ac4ad28a1c1f8494f661c6","章节测验","有效数字中的末位数字是估计值,不是测定结果",[19,31,40,49,58,67,74,78,83,88],{"answer":20,"createTime":21,"id":22,"options":23,"question":28,"source":29,"type":30},[],"2023-10-13 12:39:34",99685759,[24,25,26,27],"[H+]=0.0020mol\u002FL","CaO %=19.96","pH=10.26","5000","列各数中,有效数字位数为四位的是 ( )","v1",0,{"answer":32,"createTime":21,"id":33,"options":34,"question":39,"source":29,"type":30},[],99685764,[35,36,37,38],"0.085","0.8511","0.8","0.851","已知某溶液pH=0.070,其氢离子浓度为( ) mol&middot;L-1",{"answer":41,"createTime":21,"id":42,"options":43,"question":48,"source":29,"type":30},[],99685767,[44,45,46,47],"99.3 kPa","101.63 kPa","96.97 kPa","94.64 kPa","在20℃,99.3 kPa的气压下,用排水法收集氮气,已知20℃时的饱和水蒸气压为2.33kPa,求此时氮气的压力为( )",{"answer":50,"createTime":21,"id":51,"options":52,"question":57,"source":29,"type":30},[],99685770,[53,54,55,56],"P1 =P2,V1=2V2,T1= (1\u002F2)T2","P1 =P2,V1=(1\u002F2)V2,T1=2T2","P1 =2P2,V1=2V2,T1=2T2","P1 =2P2,V1=V2,T1=2T2","一定质量的理想气体,在某一平衡状态下的压强、体积和温度分别为P1、V1、T1,在另一平衡状态下的压强、体积和温度分别为P2、V2、T2,下列关系正确的是( )",{"answer":59,"createTime":21,"id":60,"options":61,"question":66,"source":29,"type":30},[],99685773,[62,63,64,65],"不变","减少","增加","无法确定","处于室温的一密闭容器内有水及与水相平衡的水蒸气,现充入不溶于水也不与水反应的气体,则水蒸气的压力( )",{"answer":68,"createTime":69,"id":70,"options":71,"question":28,"source":29,"type":30},[],"2024-11-09 12:27:41",165127004,[72,72,72,72,73,72,72,25,72,72,26,72,72,27],"","=0.0020mol\u002FL",{"answer":75,"createTime":5,"id":6,"options":76,"question":17,"source":29,"type":77},[],[8,9],3,{"answer":79,"createTime":5,"id":80,"options":81,"question":82,"source":29,"type":77},[],165127006,[8,9],"有效数字的位数与所采用的单位有关",{"answer":84,"createTime":85,"id":86,"options":87,"question":48,"source":29,"type":30},[],"2025-11-12 12:12:51",232621349,[44,45,46,72,72,47],{"answer":89,"createTime":85,"id":90,"options":91,"question":57,"source":29,"type":30},[],232621350,[72,72,53,72,72,54,72,72,55,72,72,56]]