Question

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17. Pragya tested the solubility of three different substances, different temperature and collected the
data as given below (results are given in the following table, as grams of substance dissolved in
100g of water to form a saturated solutions)
4*4=4
Substance
Temperature (In Kelvin)
dissolved
283
293
313
333
353
Solubility
Potassium
21
32
62
106
167
Nitrate
Sodium
36
36
36
37
37
Chloride
Potassium
35
35
40
46
54
Chloride
Ammonium
24
37
41
55
66
Chloride
(a) What mass of Potassium Nitrate would be needed to produce a saturated solution of
potassium nitrate in 50 grams of water at 313 K?
(b) Pragya makes a saturated solution of potassium chloride in water at 353K and leaves
the solution to cool at room temperature. What would she observe as the solution cools?
Explain.
(c) Find the solubility of each salt at 293K. Which salt has the highest solubility at this
temperature?
(d) What is the effect of change of temperature on the solubility of salt?
5
10
T1​

Answer 1

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Explanation:

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