Tuesday
September 23, 2014

Homework Help: Chemistry -repost thank you in advance

Posted by annie on Monday, September 20, 2010 at 10:33am.

I have a bottle of 95% ethanol purchased from the manufacturer.

Normally, when it is not stated, does it mean 95% w/w ethanol?

I need to prepare 100ml of 40% v/v ethanol solution from 95% ethanol.
Please show me the calculation steps.

Thanks.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - v/v versus w/w - Thanks a lot:) So just to confirm: normally for any...
Chemistry problem - I refer to my earlier post on v/v versus w/w. I would be ...
Chemistry- urgent help needed - How do I prepare 40% v/v from 95% ethanol? When ...
Chemistry - When doing a simple distillation of ethanol-water, is the vapor pure...
Chemistry - A bottle of wine contains 11.4% ethanol by volume. The density of ...
AP Chemistry - A bottle of wine contains 12.5% ethanol by volume. The density of...
Chemistry - Alcoholic drinks contain ethanol. 10cm3 of ethanol is called one ...
Chemistry - Mass of unknown solution=25.671 Mass ethanol =8.243 Assuming that ...
chemistry - What is the mass/vol % ethanol in an ethanol-water solution with ...
science - Given that 6.20 x 10^23 ethanol molecules have a mass of 46.04g ...

Search
Members