18. The Solubility of sodium nitrate at 50°C and 30°C is 114 g and 96 g respectively. Find the amount of salt that will be thrown out when a saturated solution of sodium nitrate containing 50 g of water is cooled from 50°C to 30°C?
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Answer:
here the answer ..
Explanation:
The solubility of NaNO3 at 50oC is 114 g i.e. 114 grams of NaNO3 is needed to make a saturated solution of NaNO3 in 100 g of water at 50oC. Hence, to make a saturated solution in 50 grams of water, we will require half of 114 grams of NaNO3 i.e. = 114/2 = 57 grams of NaNO3. At 30c the 50g solution willl have 43g..
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