【单选题】"Times New Roman";mso-bidi-font-weight:bold">标定 0.10 mol/LNaOH mso-bidi-font-weight:bold">,用草酸( H 2 C 2 O 4 90.04 mso-hansi-font-family:"Times New Roman";mso-bidi-font-weight:bold">) 作基准物质, "Times New...
C.
C NaOH =0.13935 mol /L
【单选题】When ______your mother take a shower?
【简答题】TEXT B Considering that anxiety makes your palms sweat, your heart race, and your brain seize up like a car with a busted transmission, it's no wonder people reach for the Xanax to vanquish it. But in...
【单选题】用 作为基准物质标定0.10 mol/L的KMnO4溶液浓度时,滴定时选用的指示剂是( )
【单选题】标定 0.10 mol/LNaOH ,用草酸( H 2 C 2 O 4 90.04 ) 作基准物质, 精密称取 0.1636 g 的基准物质草酸,溶解后,以酚酞为指示剂,用 NaOH 滴定至终点,用去 26.06 mL 反应式为: H 2 C 2 O 4 +2 NaOH=Na 2 C 2 O 4 +2H 2 O 计算公式 计算 C NaOH 应是:
C.
C NaOH =0.13935 mol /L