Friday
November 28, 2014

Homework Help: Chemistry problem

Posted by annie on Monday, September 20, 2010 at 5:08pm.

I refer to my earlier post on v/v versus w/w. I would be very grateful for any advice provided.
For 95% ethanol purchased from manufacturer, we normally take it as 95%v/v.
For 98% sulphuric acid, it seems like it is normally 98% w/w.
I have also seen a potassium hydroxide 85% (solid) labelled on a bottle and wonder what it means?
Is it usually %v/v for liquids when it is not stated on the bottle?

Thank you so much.

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