Asolution is prepared by mixing 49.0 ml toluene (c6h5ch3, d = 0.867 g/cm3) with 195 ml benzene (c6h6, d = 0.874 g/cm3). assuming that the volumes add on mixing, calculate the mass percent, mole fraction, molality, and molarity of the toluene.

Asatellite with an orbital period of exactly 24.0 h is always positioned over the same spot on earth. this is known as a geosynchronous orbit. television,communication, and weather satellites use geosynchronous orbits. at what distance would a satellite have to orbit earth in order to have a geosynchronous orbit?