Chemistry dilution equation?

2016-10-24 7:58 am
What is the molar concentration of a solution made when water is added to 12g C4H9OH (mass = 74g/mol) to make 60mL of solution?

回答 (2)

2016-10-24 8:15 am
✔ 最佳答案
Molar mass of C₄H₉OH = (12.0×4 + 1.0×10 + 16.0) g/mol = 74.0 g/mol

No. of moles of C₄H₉OH = (12 g) / (74.0 g/mol) = 0.162 mol
Volume of the solution = 60 mL = 0.060 L

Concentration of the solution = (0.162 mol) / (0.060 L) = 2.7 M
2017-03-01 11:29 pm
Dilution Equation Chemistry


收錄日期: 2021-05-01 13:06:14
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20161023235806AAQuC2W

檢視 Wayback Machine 備份