Posted by Anonymous on .
The "proof" of an alcoholic beverage is twice the volume percent of ethyl alcohol, C2H5OH in water. The density of ethyl alcohol is 0.789g/ml and that of water is 1.00g/ml. A bottle of 100 proof rum is left outside on a cold winter day.
a.) Will the rum freeze if the temperature drops to 18 degrees celsius?
b.) Rum is used in cooking and baking. At what temperature does 100 proof rum boil?

science 
Brian S,
hint, 100 proof rum is 50% alcohol and 50% water.
a 1L bottle of 100 proof rum has (789/2) = 394.5g of alcohol and 500g of water.