Member of the Month

hi_vis360
December, 2024

Online

Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!

Math help please?

profile picture
[D-Lite]
Posts: 120 - Karma: 32
describe how you prepare 400 ml of 50% ethanol from 60% ethanol?
also says round to the nearest ml if necissary.

If anyone can show me how to do this it would be awesome I am about to take a test and can't figure this out.
Nov 4 2010 6:16PM
0 0
profile picture
304NordMan
Posts: 2983 - Karma: 525

No, because a full grown rino could never jump higher than a baby giraffe. Even with the brute difference in muscular strength, a baby giraffe is much more limber and mobile.

Correct?

Nov 4 2010 6:23PM
0 0
profile picture
TheButterHashira
Posts: 9691 - Karma: 1,702
initial concentration times initial volume equals final C times final V. so its 400 ml(.5)/.6=333.33 ml then you add the extra water to dilute it.
Nov 4 2010 6:32PM
0 0
profile picture
[D-Lite]
Posts: 120 - Karma: 32
too bad i already had you at 10/10

Nov 4 2010 6:36PM
0 0
profile picture
molsongolden
Posts: 1649 - Karma: 162
burn 10% of the ethanol
Nov 4 2010 6:38PM
0 0
All times are Eastern (-5)