preparation of benzoic acid

2010-10-16 6:21 am
After boiling Benzamide with NaOH, HCl is added.
1. What is the copious ppt formed?
2. How can we know excess HCl is added?

回答 (1)

2010-10-16 6:55 am
✔ 最佳答案
1. the relatively insoluble benzoic acid.

2. test with pH paper. if it's strongly acidic, then excess HCl is added.


收錄日期: 2021-04-19 23:33:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101015000051KK01415

檢視 Wayback Machine 備份