18.Pragya tested the solubility of three different substances at different temperatures and collected the data as given below results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution. (Any four) Ix4
Substance Dissolved
Potassium nitrate
Sodium chloride
Potassium chloride
Ammonium chloride
Temperature in K
293
32
36
35
37
313
62
36
40
41
289
21
36
35
24
333
106
37
46
55
353
167
37
54
66
(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 353 K 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 293 K. Which salt has the highest solubility at this temperature!
(d) What is the effect of change of temperature on the solubility of a salt?
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Answer:
.Pragya tested the solubility of three different substances at different temperatures and collected the data as given below results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution. (Any four) Ix4
Substance Dissolved
Potassium nitrate
Sodium chloride
Potassium chloride
Ammonium chloride
Temperature in K
293
32
36
35
37
313
62
36
40
41
289
21
36
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C is the correct
please mark as brilliant
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