A tank contains 100 kg of salt and 2000 L of water. A solution of a concentration 0.025 kg of salt per liter enters a tank at th
e rate 8 L/min. The solution is mixed and drains from the tank at the same rate. Required:
a. What is the concentration of our solution in the tank initially?
b. Find the amount of salt in the tank after 4.5 hours.
c. Find the concentration of salt in the solution in the tank as time approaches infinity.
If you think about how it works when cups are stacked. you will begin with the height of the cup plus the height of the lip you would then add just the heigt of the lips until you get to the height needed. so your answer should be 19 cups
