Recovering KNO3 from Aqueous Solution at 10°C

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To recover potassium nitrate (KNO3) from an aqueous solution cooled from 60°C to 10°C, it's essential to know the solubility of KNO3 at 10°C. The initial solution contains 250g of KNO3 and 250g of water, which is saturated at 60°C. The solubility of KNO3 at 10°C is significantly lower than at 60°C, meaning some KNO3 will precipitate out upon cooling. Calculating the difference between the amount of KNO3 initially present and the solubility at 10°C will determine how much can be recovered. Accurate solubility data is crucial for this calculation.
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Homework Statement



The mass of potassium nitrate that could be recovered from a solution prepared at 60deg Celsius from 250g potassium nitrate and 250g water by cooling the solution to 10 deg Celsius.

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The Attempt at a Solution



not to sure how to start this one any help would be appreciated
 
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at 60oC the solution can be saturated> 1:1 ratio so I figure once I know the solubility at 10oC I simply multiply 250g by the ratio? I am not to sure what the solubility of KNO3 at 10oC is
 
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