Determining the moles of ions of aqueous ionic solutions How many moles of each ion are in each solution а) 2 mol of potassium perchlorate (KCIO,(s)) dissolved in water b) 354 g of magnesium acetate (Mg(C,H,0,),) dissolved in water

4) Given that the freezing point depression constant for water is 1.86°C kg/mol, calculate the chang in freezing point for a 0.907 m sugar solution. A) B)

Which one is it?

Using a graduated flask (200mL or 250 mL) make volume up an appropriate an appropriate volume of an approximately 0.1M 101. Molard 0.1 moles of solute in 1 litre of solution.) 1. Calculate the mass of Navett needed. of