February 22, 2017

Homework Help: Chemistry- urgent help needed

Posted by annie on Sunday, September 19, 2010 at 6:08pm.

How do I prepare 40% v/v from 95% ethanol? When we say 95% ethanol, do we usually mean 95% w/w ethanol unless otherwise stated?
Please show me the calculation steps to prepare 40% v/v from 95% w/w ethanol.

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