Determine the density (g/mL) for each of the following: Part A A 19.5-mL sample of a salt solution that has a mass of 29.5 g. Express your answer with the appropriate units. ? Density = Value Units Submit Request Answer Part B A cube of butter weighs 0.245 lb and has a volume of 121.5 mL. Express your answer with the appropriate units. HA ? Density = Value Units Submit Request