【单选题】滴定分析的相对误差一般要求为0.1%滴定时耗用标准溶液的体积应控制在
【简答题】选字填空 拌 伴 绊 畔 搅( ) 伙( ) ( )脚 江( )
【简答题】听下面一段对话,回答1-2题。 1. What is the weight of the dictionary? A. One kilo B. Two kilos C. Three kilos 2. When does the man's flight leave? A. At 7∶15 B. At 7∶45 C. At 7∶50
【判断题】滴定分析的相对误差一般要求为0.1%,故滴定时耗用标准滴定溶液的体积应控制在10~15mL。
【单选题】从我国法的渊源分析,《铁路法》属于( )
【单选题】A variable represents the weight of a person. What is the level of measurement?
【单选题】There is wetting sand with weight of 2200g and the water percentage of 5%. What is the weight after its drying? ( )
【判断题】滴定分析的相对误差一般要求为0.1%,滴定时耗用标准溶液的体积应控制
【单选题】滴定分析相对误差一般要求 ≤0.1% ,滴定管单次读数的误差为 ±0.01 mL ,则滴定时耗用标准溶液的体积应控制在( )