Chemistry problem: i don't understand how to do, thanks?
回答 (1)
2020-05-23 6:52 am
✔ 最佳答案
2 HCl + K2CO3 → 2 KCl + H2O + CO2(2 x 39.1) + 12.0 + (3 x 16.0) = 138.2
(0.03490 L) x (0.200 mol/L HCl) x (1 mol K2CO3 / 2 mol HCl) x
(138.2 g K2CO3/mol) / (0.509 g) = 0.94757 = 94.8% K2CO3
收錄日期: 2021-04-24 07:57:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200522002911AAYJuR4