[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fco3ZWX-Dnovi2RDXMswWdkky47Vb7_N3zK130pB2cFs":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":28,"type":29},[],"2024-11-09 12:27:41",165127004,[8,8,8,8,9,8,8,10,8,8,11,8,8,12],"","=0.0020mol\u002FL","CaO %=19.96","pH=10.26","5000",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},11,"4b7c2ccdfecb844108f52060b2ca0fff","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff176f7c718195dc39a8273b702e24629.png","无机及分析化学","290c6f4164ac4ad28a1c1f8494f661c6","章节测验","列各数中,有效数字位数为四位的是 ( )",[22,30,39,48,57,66,69,78,83,88],{"answer":23,"createTime":24,"id":25,"options":26,"question":20,"source":28,"type":29},[],"2023-10-13 12:39:34",99685759,[27,10,11,12],"[H+]=0.0020mol\u002FL","v1",0,{"answer":31,"createTime":24,"id":32,"options":33,"question":38,"source":28,"type":29},[],99685764,[34,35,36,37],"0.085","0.8511","0.8","0.851","已知某溶液pH=0.070,其氢离子浓度为( ) mol·L-1",{"answer":40,"createTime":24,"id":41,"options":42,"question":47,"source":28,"type":29},[],99685767,[43,44,45,46],"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":49,"createTime":24,"id":50,"options":51,"question":56,"source":28,"type":29},[],99685770,[52,53,54,55],"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":58,"createTime":24,"id":59,"options":60,"question":65,"source":28,"type":29},[],99685773,[61,62,63,64],"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":67,"createTime":5,"id":6,"options":68,"question":20,"source":28,"type":29},[],[8,8,8,8,9,8,8,10,8,8,11,8,8,12],{"answer":70,"createTime":71,"id":72,"options":73,"question":76,"source":28,"type":77},[],"2024-11-09 12:27:42",165127005,[74,75],"正确","错误","有效数字中的末位数字是估计值,不是测定结果",3,{"answer":79,"createTime":71,"id":80,"options":81,"question":82,"source":28,"type":77},[],165127006,[74,75],"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":47,"source":28,"type":29},[],"2025-11-12 12:12:51",232621349,[43,44,45,8,8,46],{"answer":89,"createTime":85,"id":90,"options":91,"question":56,"source":28,"type":29},[],232621350,[8,8,52,8,8,53,8,8,54,8,8,55]]