Hey there. I've been searching the internet on volume contraction with water and methaol mixture. Although I have found a little bit of infomation I don't know why it happens. I found it quite intriguing that mixing 50ml of water and 50ml of Methanol =/= 100ml of liquid. Infact there is a 4% difference. I know it has something to do with the strength of the hydrogen bond, but is there anything else that affects this. Size of the hydrocarbon? Temperature? Percentage of Mixture? if so, I cannot find much on this on the internet. I'd like to know more about this it does seem very interesting. Does anyone else know anything about Volume Contraction in Methanol & Water mixtures?