1. Mineral processing unit operations handle slurries with a variety of properties. Slurry density as an important characteristic can be expressed in different ways depending on the processing stage. a) Suppose that in a sulphide ore processing plant the primary stage typically involves treatment of slurries up to 45% solids by weight. Express this density in terms of kg per litre (i.e., tonne/ m3 ) if the average SG of the dry ore in this slurry is 3.1. b) What is the value of corresponding \% solids by volume for this slurry, which is important for the design of hydrocyclone systems? c) How much water is to be added per m3 of this slurry if the density of 45% by weight is brought down to 35% by weight