At 60°C, must be added to 1 L of water to make a saturated solution. At 25°C, the solubility is about . A solution that contains 600 g Ba(NO) in 3 L of H2O at 70°C is . For a solution that contains 300 g Ba(NO) in 3 L of H2O at 60°C to become saturated, g solute must be added.