Directions: Using the given equations, solve the following problem. 1. A contains 50ml of ethanol in 300 ml alcohol of solution. What is the percent by volume of the solution? Given: Solution: 2. What is the percent by mass of a salt solution by dissolving 11g of salt in 80g of solution? Given: Solution: 3. A solution is made by adding 25 ml of benzene to 80 ml of toluene. What is the percent by volume of benzene? Given: Solution:​