Answered: Which of the following is a proper…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter14: Mixtures And Solutions

Section: Chapter Questions

Problem 92A

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Which of the following is a proper procedure for creating a supersaturated solution of potassium nitrate if you have 100g of water and 80g of potassium nitrate available?

Add all of the solute to 100g of water and stir for an extremely long time.

Add all of the solute to 100g of water and heat it up past 48 degrees C.

Add all of the solute to 100g of water & heat it up past 48 degrees C. Make sure everything dissolves, and then carefully cool it down below 48 degrees C.

Add all of the solute to 100g of water & heat it up just over 35 degrees C. Once everything dissolves, cool it down to below 35 degrees C.

It is impossible to make a supersaturated solution of potassium nitrate with 80g of solute & 100g of water.

Solubility Curves
of Various Solutes
150
140
Ki
130
120
NANO;
KNO
110
100
90
80
HCI
NH.C
70
60
NH3
50
40
NacI
30
KCIO;
20
10
SO2
10 20 30 40 50 60 70 80 90 100
Temperature (°C)
Solubility (g Solute/100. g H20)

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