1. How many mL of ethyl alcohol are present in a 50 mL bottle of a 70% al- cohol solution Given: Required: Equation: Solution: Answers: ​

Sagot :

Answer:

Amount of ethyl alcohol = 35 ml

Explanation:

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm), or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.