mass of ice remaining after decanting? #9 Freezing-point depression constant ("C/m) Freezing-point of DI water (°C) Magnesium chloride Molar mass (g/mol) Mass of calorimeter (g) Volume of DI water (mL) Mass of magnesium chloride (g) Moles of magnesium chloride (mol) Mass of calorimeter + solution (g) Mass of calorimeter + solution + ice (g) Freezing-point of solution (C) Mass of calorimeter + ice after decanting (g) Mass of ice added (g) Mass of ice remaining after decanting (g) Mass of melted ice (g) Mass of water in final solution (g) Mass of water in final solution (kn) Solution 1 MgCl2 95.21 17.28 49.0 1.46 0.0153 67.51 113.17 -1.02 43.92 45.66 26.64 19.02 67.79 006779 1.86 17.46 51.0 2.11 0.0222 70.49 115.77 -1.46 41.32 45.28 23.86 21.42 72.34 0.07234 0.20 Solution 2 MgCl2 95.21 Solution 3 MgCl2 95.21 17.41 49.5 2.98 0.0313 69.97 116.74 -1.91 33.65 46.77 1 SHOW
mass of ice remaining after decanting? #9 Freezing-point depression constant ("C/m) Freezing-point of DI water (°C) Magnesium chloride Molar mass (g/mol) Mass of calorimeter (g) Volume of DI water (mL) Mass of magnesium chloride (g) Moles of magnesium chloride (mol) Mass of calorimeter + solution (g) Mass of calorimeter + solution + ice (g) Freezing-point of solution (C) Mass of calorimeter + ice after decanting (g) Mass of ice added (g) Mass of ice remaining after decanting (g) Mass of melted ice (g) Mass of water in final solution (g) Mass of water in final solution (kn) Solution 1 MgCl2 95.21 17.28 49.0 1.46 0.0153 67.51 113.17 -1.02 43.92 45.66 26.64 19.02 67.79 006779 1.86 17.46 51.0 2.11 0.0222 70.49 115.77 -1.46 41.32 45.28 23.86 21.42 72.34 0.07234 0.20 Solution 2 MgCl2 95.21 Solution 3 MgCl2 95.21 17.41 49.5 2.98 0.0313 69.97 116.74 -1.91 33.65 46.77 1 SHOW
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.55QE
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
Transcribed Image Text:mass of ice remaining after decanting?
#9
G
Freezing-point depression constant ("C/m)
Freezing-point of DI water (°C)
Magnesium chloride
Molar mass (g/mol)
Mass of calorimeter (g)
Volume of DI water (mL)
Mass of magnesium chloride (g)
Moles of magnesium chloride (mol)
Mass of calorimeter + solution (g)
Mass of calorimeter + solution + ice (g)
Freezing-point of solution (C)
Mass of calorimeter + ice after decanting (g)
Mass of ice added (g)
Mass of ice remaining after decanting (g)
Mass of melted ice (g)
Mass of water in final solution (g)
Mass of water in final solution (ka).
Ċ
Solution 1
MgCl2
95.21
17.28
49.0
1.46
0.0153
67.51
113.17
-1.02
43.92
45.66
26.64
19.02
67.79
0.06779
51.0
1.86
Solution 2
MgCl2
95.21
17.46
2.11
0.0222
70.49
115.77
-1.46
41.32
45.28
23.86
21.42
72.34
0.07234
0.20
Solution 3
MgCl2
95.21
17.41
49.5
2.98
0.0313
69.97
116.74
-1.91
33.65
46.77
SHOW

Transcribed Image Text:9
Calculate following and record
in Lab Data
o Mass of ice added
. Mass of ice remaining
Mass of melted ice.
o
Mass of water in solution
(in grams and kilograms)
• Molality
D Freezing-point
depression
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