An aqueous potassium iodate

Question

An aqueous potassium iodate () solution is made by dissolving  grams of  in sufficient water so that the final volume of the solution is  L. Calculate the molarity of the  solution.

Answer 1

molarity = moles solute/liter solution

We know there are 3.00 liters, so we must find the number of moles.

molar mass KIO3 = 214 g/mol

531 g x 1 mol/214 g = 2.48 moles

molarity = 2.48 moles/3.00 L = 0.827 M (3 significant figures)