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如图是配制50克溶质质量分数10%的NaCl溶液的实验操作示意图. (1)图中的玻璃仪器有广口瓶、烧杯、量筒
如图是配制50克溶质质量分数10%的NaCl溶液的实验操作示意图. (1)图中的玻璃仪器有广口瓶、烧杯、量筒
2025-04-02 16:55:36
推荐回答(1个)
回答1:
(1)图中涉及到的玻璃仪器分别是广口瓶、烧杯、量筒和玻璃棒;
(2)配制50g溶质质量分数为10%的NaCl溶液,需要溶质5g,水45g,水的密度是1g/cm3,所以量取的水的体积是50mL,选择50mL的量筒;
(3)配制固体溶质的溶液的步骤是:先计算再称量再量取最后溶解;
故答案为:(1)玻璃棒;(2)5;50;(3)计算、称量、溶解.
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