【简答题】(送分,但是要自己算,看看自己本子上的过程对不对,单位写没写,表示符号有错没有) 用称取分析纯试剂K 2 Cr 2 O 7 14.709g,配成500.0mL溶液,试计算: (1) K 2 Cr 2 O 7 溶液的物质的量浓度; (2) K 2 Cr 2 O 7 溶液对Fe 的滴定度 (3) K 2 Cr 2 O 7 溶液对 Fe 2 O 3 的滴定度; 重铬酸钾的分子量:294.2,铁原子量:5...
【单选题】In the() phase team members begin to work together and adjust their work habits and behaviors to support the team. The team learns to trust each other