The solubility of a substance is 12.0 g per 100. g of water at 20.0°C. It is 18.0 g per 100. g of water at 60.0°C. How many grams of the substance can crystallize from a saturated solution that contains 200.g
of water at 60.0C if the solution is cooled to 20.0°C?

pv=nrt

explanation:

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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