Question

Study the solubility curve above and answer the following questions
What is the solubility of each salt in water at?
i) 30C ii) 600
Solubility at 30 C
Solubility at 60 C
Salt
POTASSIUM IODIDE
POTASSIUM NITRATE
POTASSIUM CHLORATE
SODIUM NITRATE
SODIUM CHLORIDE​

Answer 1

Answer:

Explanation:

a) At 313 K 62 g of potassium nitrate dissolved in 100 g of water. So to produce a saturated solution of potassium nitrate in 50 g of water we need  

100

62

​  

×50=31 g of potassium nitrate.

(b)Some soluble potassium chloride will separate out in the form of crystal at room temperature because the solubility of potassium chloride will decrease.

(c)

(i)  Solubility of Potassium nitrate at 293 K is 32 g.

(ii)  Solubility of sodium chloride at 293 K is 36 g.

(iii) Solubility of Potassium chloride at 293 K is 35 g.

(iv) Solubility of Ammonium chloride at 293 K is 37 g.                                                      

The solubility of Ammonium chloride is highest at this temperature.

(d)The solubility of salt increases with the increase in temperature.