The solubility of Ba(NO3)2 is 130.5 g per liter at 0 deg. C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of

The solubility of Ba(NO3)2 is 130.5 g per liter at 0 deg. C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of Ba(NO3)2 at 0 deg.C?