KVPY SA Exam 2011 Question Paper

Question : 37 of 80

Marks: +1, -0

The solubility curve of

KNO_3

in water is shown below.

The amount of

KNO_3

that dissolves in 50 g of water at 40°C is closest to

Solution:

At 40ºC solubility is 200 gm per 100 ml (approx)
i.e., 100 ml of water contains = 200 gm of KNO

_3

(approx)
50 ml of water contains = 100 gm (approx)

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