Sodium bicarbonate (baking soda), NaHCO3, can be purified by dissolving it in hot water (60 °C),…

Sodium bicarbonate (baking soda), NaHCO3, can be purified by
dissolving it in hot water (60 °C), filtering to remove insoluble impurities,
cooling to 0 °C to precipitate solid NaHCO3, and then filtering to remove the
solid, leaving soluble impurities in solution. Any NaHCO3 that remains in
solution is not recovered. The solubility of NaHCO3 in hot water of 60 °C is
164 g/L. Its solubility in cold water of 0 °C is 69 g/L. What is the percent
yield of NaHCO3 when it is purified by this method?