When making homemade ice cream in a hand-cranked freezer, the tub containing the ice cream mix is surrounded by a brine (water/salt) solution. To freeze the ice cream mix rapidly so that smooth and creamy ice cream results, the brine solution should combine crushed ice and rock salt in a ratio of 5 to 1. Use this for following Exercises
A large ice cream freezer requires 18 3/4 cups of crushed ice. How much rock salt will be eeded to create the necessary brine solution?