Complete the last two columns given the data already present in the table. A res
ID: 959480 • Letter: C
Question
Complete the last two columns given the data already present in the table.
A researcher wishes to determine how the water absorption capacity of sodium polyacrylate varies as a function of lithium ion (Li+) concentration. The researcher has recorded the following:
Concentration of LiNO3 Solution
Mass of Sodium Polyacrylate (g)
Incubating Volume of LiNO3 Solution (mL)
Volume of Filtrate Collected (Unabsorbed LiNO3 Solution) (mL)
Volume of LiNO3 Solution Absorbed by Sodium Polyacrylate (mL)
Volume (mL) of Water Absorbed per Gram of Sodium Polyacrylate
0.020
0.101
40.0
30.6
0.015
0.098
40.0
30.3
0.010
0.103
40.0
28.9
0.0050
0.095
40.0
27.6
0.0025
0.099
40.0
23.4
0.00
0.104
40.0
15.5
Concentration of LiNO3 Solution
Mass of Sodium Polyacrylate (g)
Incubating Volume of LiNO3 Solution (mL)
Volume of Filtrate Collected (Unabsorbed LiNO3 Solution) (mL)
Volume of LiNO3 Solution Absorbed by Sodium Polyacrylate (mL)
Volume (mL) of Water Absorbed per Gram of Sodium Polyacrylate
0.020
0.101
40.0
30.6
0.015
0.098
40.0
30.3
0.010
0.103
40.0
28.9
0.0050
0.095
40.0
27.6
0.0025
0.099
40.0
23.4
0.00
0.104
40.0
15.5
Explanation / Answer
:
Concentration of LiNO3 Solution
Mass of Sodium Polyacrylate (g)
Incubating Volume of LiNO3 Solution (mL)
Volume of Filtrate Collected (Unabsorbed LiNO3 Solution) (mL)
Volume of LiNO3 Solution Absorbed by Sodium Polyacrylate (mL)
Volume (mL) of Water Absorbed per Gram of Sodium Polyacrylate
0.020
0.101
40.0
30.6
40.0-30.6=9.4 ml
9.4 ml/0.101g=93.069 ml/g
0.015
0.098
40.0
30.3
40.0-30.3=9.7 ml
9.7/0.098=98.98 ml/g
0.010
0.103
40.0
28.9
40.0-28.9=11.1ml
11.1/0.103=107.77ml/g
0.0050
0.095
40.0
27.6
40.0-27.6=12.4 ml
12.4ml/0.095g=130.53ml/g
0.0025
0.099
40.0
23.4
40.0-23.4=16.6 ml
16.6ml/0.099 g=167.68 ml/g
0.00
0.104
40.0
15.5
40.0-15.5=24.5 ml
24.5ml/0.104g=235.58 ml/g
Concentration of LiNO3 Solution
Mass of Sodium Polyacrylate (g)
Incubating Volume of LiNO3 Solution (mL)
Volume of Filtrate Collected (Unabsorbed LiNO3 Solution) (mL)
Volume of LiNO3 Solution Absorbed by Sodium Polyacrylate (mL)
Volume (mL) of Water Absorbed per Gram of Sodium Polyacrylate
0.020
0.101
40.0
30.6
40.0-30.6=9.4 ml
9.4 ml/0.101g=93.069 ml/g
0.015
0.098
40.0
30.3
40.0-30.3=9.7 ml
9.7/0.098=98.98 ml/g
0.010
0.103
40.0
28.9
40.0-28.9=11.1ml
11.1/0.103=107.77ml/g
0.0050
0.095
40.0
27.6
40.0-27.6=12.4 ml
12.4ml/0.095g=130.53ml/g
0.0025
0.099
40.0
23.4
40.0-23.4=16.6 ml
16.6ml/0.099 g=167.68 ml/g
0.00
0.104
40.0
15.5
40.0-15.5=24.5 ml
24.5ml/0.104g=235.58 ml/g
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