What is the molarity of a solution made using 2.19 g of KI dissolved in enough water to make 266 mL of solution?
The molarity of the solution will be
Since the volume of the solution is given to you, all you need to do is figure out how many moles of potassium iodide you have. Use the compound's molar mass to go from grams to moles
As a result, the solution's molarity will be
SIDE NOTE Don't forget to use liters, not mililiters, when calculating molarity.