miniradman says : citation :
I think that density fo ethanol is 0.789g/cm^3 I don't really understand why they must be multiplied by the 60 and 40 mole quantites. |
Raina says : 0.869 + 3.333 .... 100% 0.869.... x% ________ x = (100x0.869) / (0.869+3.333) = ...% |
miniradman says : citation :
135.755% ? |
miniradman says : sorry. I made a mistake x% = (100x0.869) / (0.869+3.333) x% = (86.9)/(4.2) x% = 20.69% |
Raina says : citation :
That's nice, but you have to do the same bit again, only in ml.. (instead of the 0.869 and 3.333, turn those ratios into ml) |