IS NaOH A PRIMARY STANDARD?

👨🏻‍🏫 學術台化學

2008-10-20 8:13 am

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??

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.

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收錄日期: 2021-04-26 19:31:32
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