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【简答题】
（8分）实验室用固体烧碱配制480mL 1mol/L NaOH溶液。 （1）需称量 g的烧碱固体，固体应放在 中称量。 （2）配制过程中，不需要使用的仪器是（填写代号 ） 。 A 烧杯    B 量筒        C 1000mL容量瓶     D 玻璃棒 E 漏斗    F 胶头滴管    G  500mL试剂瓶 （3）根据实验的实际需要和（2）中列出的仪器判断，完成实验还缺少的仪器是 ； （4）在的过程中，后期加入少量水的做法是 。
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