Nhomakorabea烧杯
用于配制溶液和较大量试剂的反应 容器,在常温和加热时使用
加热时应放置在石棉网上,使受热 均匀
量度液体体积
不能加热、不能作反应容器
量筒
读数: 100 mL规格:精确到1 mL 10 mL规格:精确到0.1 mL
俯视:读数偏大
视线与量筒内液体的凹液面的 最低处保持水平
仰视:读数偏小 思考:向量筒中注入水,仰视读数为a mL ,倒出一部分水后,俯视读数为b mL, 则倒出水的 体积>为 (a-b)mL
4、All that you do, do with your might; things done by halves are never done right. ----R.H. Stoddard, American poet做一切事都应尽力而为,半途而废永远不行6.17.20216.17.202110:5110:5110:51:1910:51:19
5、You have to believe in yourself. That's the secret of success. ----Charles Chaplin人必须相信自己,这是成功的秘诀。-Thursday, June 17, 2021June 21Thursday, June 17, 20216/17/2021
2、Our destiny offers not only the cup of despair, but the chalice of opportunity. (Richard Nixon, American President )命运给予我们的不是失望之酒,而是机会之杯。二〇二一年六月十七日2021年6月17日星期四
固体药品的取用: