Please help me!
Calculate hte volume of stock solution, in ml, required to prepare 250.00ml of 0.001000M NA2S2O3 solution. [KI] = 0.01062M, [KBrO3] = 0.04128M,
[HCl] = 0.1063M, [Na2S2O3] = 0.01569M
Kinetics
2010-03-15 10:54 am
回答 (1)
2010-03-15 7:38 pm
✔ 最佳答案
Method 1 : No. of moles of Na2S2O3 needed = 0.0010000 * 0.25 = 0.00025
Volume of stock Na2S2O3 = (0.00025/0.01569) * 1000 = 15.93 ml
Method 2 :
Diluted solution : M1 = 0.001000, V1 = 250.00 ml
Stock solution : M2 = 0.01569, V2 = ? ml
M1V1 = M2V2
0.001 * 250.00 = 0.01569 * V2
V2 = 15.93 ml
參考: micatkie
收錄日期: 2021-04-13 17:09:07
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100315000051KK00224