The pictures below show samples of different substances. mc015-1. jpg The mass and volume of each sample differ from the mass and volume of the other samples. Is it possible for each sample to contain 1 mol of each substance? No, because they have different masses. No, because they have different volumes. Yes, because the number of moles is not dependent on the mass or the volume. Yes, because the number of moles is only dependent on the mass per unit volume.