1. A 19 mL sample of a solution of Li2S was diluted with water to 81 mL. A 25 mL sample of the dilute solution was found to contain 0.9 M Li+. What was the concentration of Li2S in the original undiluted solution?
2. What is being calculated when the volume of the solution in liters is multiplied by the molarity of a solute in a solution?
The moles of solute in the solution
The moles of solution
The milliliters of volume in the solution
The molarity of the solute in the solution
The liters of solute in the solution
The volume of the solution in liters
The milliliters of water in the solution
The moles of water in the solution