Describe how you would prepare each of the following aqueous solutions, starting with solid kbr: (a) 0.75 l of 1.5 x 10^-2 m kbr, (b) 125g of 0.180m kbr, (c) 1.85 l of a slouotion that is 12.0% kbr by mass (the density of the solution is 1.10 g/ml) (d) a 0.150 m solution of kbr that contains just enough kbr to precipitate 16.0g of agbr from a solution containing 0.480 mol of agno3