我知NaOH(s) 唔係primary standard,,
因為佢會absorb moisture in the air
但係如果一開始係NaOH(aq)既呢??
咁重有冇問題?可唔可以係primary standard??
IS NaOH A PRIMARY STANDARD?
2008-10-20 8:13 am
回答 (1)
2008-10-21 6:28 pm
✔ 最佳答案
NaOH(aq) will absorb carbon dioxide from air to form NaHCO3, Na2CO3; so still not primary standard.
收錄日期: 2021-04-26 19:31:32
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081020000051KK00038