The density of ethanol at 20 c is 0.791 g/ml. how many milliliters of ethanol correspond to 12.0 g of ethanol at 20 c?

Density = mass/volume. Density of ethanol = 0.79 g/mL. Mass of ethanol = 12g . We seek to calculate the volume of ethanol at 20 degrees. The milliliters of ethanol which is also the same as volume of ethanol = mass/density = 12/0.79 = 15.18mL.

Butterfly wingspan is 7.7

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf