[" 100.What will be the molality of chloroform in the "],[" water sample which contains "15" ppm chloroform "],[" by mass? "],[[" (a) "1.25times10^(-4)m," (b) "2.5times10^(-4)m],[" (c) "1.5times10^(-3)m," (d) "1.25times10^(-5)m]]