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Volume:
Issue:
guan zhu cheng liang cao zuo zhong yi xie xi jie
Author(s):
TIAN Changming
Pages:
75
-
77
Year:
2013
Issue:
5
Journal:
Education in Chemistry
Keyword:
天平感量
;
质量差异
;
空气浮力
;
量筒规格
;
Abstract:
“称量”是化学实验中的基本操作,对于“称量”操作中某些细节,很多初中教师并没有引起足够的重视,在试题的命制或平时的教学中,常常会出现一些问题.本文就“称量”过程中托盘天平的感量、仪器质量差异等四个方面的问题作一些探讨.
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