配制20%的氯化钠溶液时，不会引起溶液中氯化钠的质量分数偏小的
侯英超 |
发布日期：2010-05-12 18:09:04
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配制20%的氯化钠溶液时，不会引起溶液中氯化钠的质量分数偏小的是 （ ） A．氯化钠晶体不纯 B．用量筒取水时仰视读数 C．烧杯用蒸馏水润洗后再配制溶液 D．转移已配好的溶液时，有少量液体溅出 |
