I spent hours trying to talk him into accepting the settlement, but he turned a deaf ear to all my talk. I spent hours trying to talk him into accepting the settlement, but he turned a deaf ear to all my __________.
【简答题】(1)0.5mol H 2 SO 4 的质量是______g,含______个氧原子,能和______molNaOH完全反应,该硫酸所含氢元素的质量与______mol H 3 PO 4 或标准状况下______L HCl中所含氢元素的质量相同. (2)某密闭容器的质量为50g,当装满CO 2 气体时,质量为58.8g,如果装满CH 4 气体时,此密闭容器的质量为______. (3)已知某气体氧...