1. An alcohol brand X is used as disinfectant in the hospitals. Its total volume is 100 ml containing 70 mL ethyl alcohol. What is the percentage by volume of ethyl alcohol? Given: volume of solute:? total volume of solution: ? Required: ? Solution: Formula: percent by volume=volume of solute/total volume of solution X 100 percent by volume=? percent by volume=?pasagot plss