Question

Pragya tested the solubility of four different substances at different
temperatures and collected the data as given below (results are given in the
following table, as grams of a substance dissolved in 100 grams of water to
form a saturated solution).
SOLUBILITIES OF VARIOUS SALTS AT DIFFERENT TEMPERATURES
Substance Dissolved 283K 293K 313K 333K 353K
Potassium nitrate 21 32 62 106 167
Sodium chloride 36 36 36 37 37
Potassium chloride 35 35 40 46 54
Ammonium chloride 24 37 41 55 66
ANSWER THE FOLLOWING – BASED ON THE TABLE
(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?

Answer 1

Answer:

Explanation:

a) 12 grams of the substance will be required.

b)She would observe that some of the dissolved solute will leave the solution.

c) The solubility of each salt is as follows: potassium nitrate, potassium chloride, sodium chloride and then ammonium chloride(the salt with the lowest solubility to the highest ).Ammonium chloride has the most solubility at this temperature.

d)The more the temperature increases more the solubility increases.

MARK IT AS BRAINLIEST.

Answer 2

Answer:

her is your answers l hope you like the answers please make me a Branlist