Mass of Substance = Volume of Substance x Density of Substance
Density of acetonitrile = 782.2 kg/m3
Density of acetonitrile in gram/ounce(uk) = 2960.9496842965946
Mass of a Substance = 2960.9496842965946 x 6
6 ounce(uk) of acetonitrile weighs 17765.698105779567 gram