Chemistry, asked by ADITYATHEDAK, 1 year ago

Solubility of potassium nitrate at 313K is 62 g.What mass of potassium nitrate would be needed to produce a saturated solution of KNO3 in 50 g of water at 313 K?What is the effect of change of temperature on the solubility of a salt?

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Answered by RiyaKhera9

To saturate 50g of water at 313K 31g of potassium nitrate is required
Increase in temperature increase the solubility of a salt

ADITYATHEDAK: Can you give me answer in detail,because it is for 3 mark.

RiyaKhera9: to saturate 100g of water 62g of potassium nitrate is required.so to saturate 50g of water we need 31g of potassium nitrate

amyliyasmith: it was not helpful

RiyaKhera9: what do u mean?

Answered by subhamkmehta

The solubility of KNO3 is 62g KNO3 in 100g H2O at 313K

That is how I interpret your statement.

This is the maximum amount of solute that can be dissolved in water at 313K. The solution is saturated at that temperature.

If you have only 50g H2OP you will dissolve only half the mass of KNO3

Mass KNO3 = 62/2 = 31g . KNO3 soluble in 50g H2O at 313K.

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