5. Molar concentration of iron salicylate ion in 50 mL volumetric flask (calculated using equation of line) 6. Molar concentration of iron salicylate ion in 250 mL volumetric flask (parent aspirin stock solution) 7. Moles of iron salicylate ion in 250 mL volumetric flask (parent aspirin stock solution)
5. Molar concentration of iron salicylate ion in 50 mL volumetric flask (calculated using equation of line) 6. Molar concentration of iron salicylate ion in 250 mL volumetric flask (parent aspirin stock solution) 7. Moles of iron salicylate ion in 250 mL volumetric flask (parent aspirin stock solution)
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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help needed for answering the following last 5 questions, any help is appreciated! :)
![The molar mass of acetylsalicylic acid is 180.16 g mol 1
Part A: Mass of acetylsalicylic acid data and molar concentration calculation
Unrounded
Rounded
Unit
Mass of acetylsalicylic acid in 1 L
1.5739
g
solution
1. Molar concentration of acetylsalicylic
0.00876310
0.00876
mol L-1
acid
Part A: Volume data, ferric salicylate ion concentration calculation and absorbance data
Trial
Volume of solution
Final volume
2. [Fe-salicylate ion] (mol L¯!)
Absorbance
S (mL)
(mL)
Unrounded
Rounded
Blank (
FeCl3
soln used
0.00
50.00
0.00000
0.00
0.000
to calibrate
colorimeter)
1
2.00
50.00
3.50500 x 104
3.51 x 104
0.261
3.00
50.00
5.25700 x 104
5.26 x 10-4
0.376
3
4.00
50.00
7.01000 x 104
7.01 x 104
0.523
5.00
50.00
8.76300 x 104
8.76 x 104
0.656
6.00
50.00
0.00105150
1.05 x 103
0.778
Part A: Slope and intercept calculation
Unrounded
Rounded
Unit
3. Slope
749.750
7.50 × 102
L mol-
-0.00241872
4. y-intercept
6.80000× 103
-0.00242
Unitless](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff8ca914a-44f4-4fe1-bd26-de14ecc5b978%2F1c8f78c4-27c2-4ab8-aa3a-edfcb1966e03%2F12l5yet_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The molar mass of acetylsalicylic acid is 180.16 g mol 1
Part A: Mass of acetylsalicylic acid data and molar concentration calculation
Unrounded
Rounded
Unit
Mass of acetylsalicylic acid in 1 L
1.5739
g
solution
1. Molar concentration of acetylsalicylic
0.00876310
0.00876
mol L-1
acid
Part A: Volume data, ferric salicylate ion concentration calculation and absorbance data
Trial
Volume of solution
Final volume
2. [Fe-salicylate ion] (mol L¯!)
Absorbance
S (mL)
(mL)
Unrounded
Rounded
Blank (
FeCl3
soln used
0.00
50.00
0.00000
0.00
0.000
to calibrate
colorimeter)
1
2.00
50.00
3.50500 x 104
3.51 x 104
0.261
3.00
50.00
5.25700 x 104
5.26 x 10-4
0.376
3
4.00
50.00
7.01000 x 104
7.01 x 104
0.523
5.00
50.00
8.76300 x 104
8.76 x 104
0.656
6.00
50.00
0.00105150
1.05 x 103
0.778
Part A: Slope and intercept calculation
Unrounded
Rounded
Unit
3. Slope
749.750
7.50 × 102
L mol-
-0.00241872
4. y-intercept
6.80000× 103
-0.00242
Unitless
Transcribed Image Text:Strength of aspirin tablet (mg acetylsalicylic acid)
500
mg
Absorbance of aspirin solution
0.191
Unitless
ASPIRIN TABLET CALCULATIONS
Part B: Calculations
Unrounded
Rounded
Units
5. Molar concentration of iron salicylate ion in 50 mL
volumetric flask (calculated using equation of line)
A
4
mol L
6. Molar concentration of iron salicylate ion in 250 mL
volumetric flask (parent aspirin stock solution)
6.
4
mol L-1
7. Moles of iron salicylate ion in 250 mL volumetric flask
mol
(parent aspirin stock solution)
8. Calculated mass of acetylsalicylic acid in the tablet
6.
mg
9. Percent error in mass of acetylsalicylic acid in the
%
tablet
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