實(shí)驗(yàn)室用氯化鈉固體配制1.0mol/L的NaCl溶液0.5L,回答下列問(wèn)題:(1)請(qǐng)寫出該實(shí)驗(yàn)的實(shí)驗(yàn)步驟:1______________,2______________,3___________________,4______________________,5__________________,6___________________
(2)所需儀器除容量瓶(規(guī)格:______),托盤天平外,還需要哪些實(shí)驗(yàn)儀器才能完成該實(shí)驗(yàn)?____________________________.
(3)虱分析下列操作對(duì)所配溶液的濃度有何影響(偏低,偏高或無(wú)影響)
1.定容后,加蓋倒轉(zhuǎn)搖勻后,發(fā)現(xiàn)液面低于刻度線,又滴加蒸餾水至刻度__________________.
2.加水定容時(shí)不小心超過(guò)了刻度線,將超出部分用膠頭滴管吸出_____________________.
3.搖勻時(shí)不小心灑出幾滴所配溶液,加水至刻度線_________________.
請(qǐng)您所明理由,