#$&* course The one bit of info that wasn't provided was the density of alcohol. Based on the density of water, which you are expected to know, you could make a reasonable estimate but you wouldn't be judged on the accuracy of the estimate. Also the exponent on alpha is -6, not 6. The problem wouldn't be held against you because of those errors, but other versions of similar problems do contain that sort of information so you do need to know how to solve them.If `dL is the displacement of the alcohol column, then assuming initial pressure to be atmospheric you can express both V and P in terms of `dL. Then P0 V0 / T0 = P1 V1 / T1 becomes an equation with only one variable, `dL.