The organic compound di-n-butyl phthalate, c16h22o4(l), is sometimes used as a low-density (1.046 g·ml–1) manometer fluid. compute the pressure (in torr) of a gas that supports a 535-mm column of di-n-butyl phthalate. the density of mercury is 13.53 g·ml–1.

Calculate the number of moles of ethane in 100 grams

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.

If 15 drops of ethanol from a medicine dropper weigh 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? density of ethanol is ethanol is 0.80g/ml.