1.

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?

Answer»

SOLUTION : Amount of sodium nitrate dissolved in 100 g of water at `50^@ `C is 114 g
`therefore `Amount of sodium nitrate dissolving in 50 g of water at -`50^@ `C is `(114 xx 50 )/( 100 ) =57 g`
Similarlyamountof sodiumnitratedissolvingin 50gofwaterat `30 ^@ ` C is `= (96 xx 50 ) /( 100 ) = 48g `
AMOUNTOF sodiumnitratethrownwhen 50 gof wateris cooledfrom `50^@ `Cto `30^@ C` is


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