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    In a solubility experiment of potassium nitrate vs temperature I am practicing, I was asked to decide on the amounts of water and potassium nitrate I should use. My confusion is that how should I know how much solid and how much water I should add so when heating it all the solid has dissolved? This is a Paper 5 question from 51/O/N/11
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    (Original post by Omnix12)
    In a solubility experiment of potassium nitrate vs temperature I am practicing, I was asked to decide on the amounts of water and potassium nitrate I should use. My confusion is that how should I know how much solid and how much water I should add so when heating it all the solid has dissolved? This is a Paper 5 question from 51/O/N/11
    look up the solubility ...
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    (Original post by charco)
    look up the solubility ...
    There is nothing given about the solubility. Thing is we have to calculate the solubility at the end using the results we get.
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    (Original post by Omnix12)
    There is nothing given about the solubility. Thing is we have to calculate the solubility at the end using the results we get.
    Then you just take a reasonbly small volume of water and a clear excess of potassium nitrate. You would not expect 100g of solute to dissolve in 20ml of water (for example)
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    (Original post by charco)
    Then you just take a reasonbly small volume of water and a clear excess of potassium nitrate. You would not expect 100g of solute to dissolve in 20ml of water (for example)
    I see. thanks for that.
 
 
 

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