將 20%濃度 glucose solution 用水溝稀成18% 濃度glucose solution...條式應該點計？
究竟要幾多ml既glucose solution(20%glucose solution is given)加幾多ml既水可以溝成18%glucose solution而合成2ml既final solution ?
我想知條式點計,,,,
將20%濃度既glucose solution 用水溝稀成18% 濃度既glucose solution,,條式點計？
2008-09-14 4:26 am
回答 (1)
2008-09-23 5:32 am
✔ 最佳答案
[concentration 1] * [volume 1] = [concentration 2] * [volume 2]20 v = 18 * 2
v = 1.8 ml
所以要 1.8 ml 的 20%濃度 glucose solution ， ( 2 - 1.8) = 0.2 ml 的水
收錄日期: 2021-04-29 21:59:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080913000051KK02219