田囚 Add-ons Help Last edit was 3 minutes ago BIUA Trebuchet... 10.5 X|四凹 ,山, … g一三三三三. 3. The active ingredient in aspirin is acetylsalicylic acid (ASA;formula C, H, O,) A commercial aspirin tablet was ground to fine powder. Exactly 0.361 g of this powdered tablet was transferred to an Erlenmeyer flask and dissolved in a 50 mL alcohol-water solution. A drop of phenolphthalein indicator was added to the solution. This solution was titrated against the standardized NaOH. Initial burette reading is 28.35 mL. The burette read 42.60 mL when a permanent pale pink color was obtained. (i) Find the molarity of acetyl salicylic acid(asa) in the flask 0.02003 (ii) Find the mass of acetylsalicylic acid in the flask. 0.361 g (iii) Find the percent mass of acetylsalicylic acid in the tablet. 98.9% Table 5: Aspirin Titration Data Initial Burette Reading (NaOH) 28.35 mL Final Burette Reading (NAOH) 42.60 mL Volume of NaOH Required for 14.25 mL Endpoint Molarity of NaOH 0.2832 M Concentration of ASA (Molarity) Volume of Aspirin Solution used 50.00 mL Find the moles and grams of ASA in your Aspirin sample using your knowledge of Stoichiometry And Calculate % Mass of ASA in your sample as shown below: % Mass of ASA = X 100 +) V

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 43GQ: Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water...

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Hey, Can you pls help me answer all parts of this question(i, ii, iii) ASAP!!

which is;

(i) Find the molarity of acetyl salicylic acid(asa) in the flask.
(ii) Find the mass of acetylsalicylic acid in the flask.
(iii) Find the percent mass of acetylsalicylic acid in the tablet.

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Last edit was 3 minutes ago
BIUA
Trebuchet...
10.5
X|四凹 ,山, … g一三三三三.
3.
The active ingredient in aspirin is acetylsalicylic acid (ASA;formula C, H, O,)
A commercial aspirin tablet was ground to fine powder.
Exactly 0.361 g of this powdered tablet was transferred to an Erlenmeyer flask and
dissolved in a 50 mL alcohol-water solution.
A drop of phenolphthalein indicator was added to the solution. This solution was titrated
against the standardized NaOH.
Initial burette reading is 28.35 mL. The burette read 42.60 mL when a permanent pale
pink color was obtained.
(i) Find the molarity of acetyl salicylic acid(asa) in the flask
0.02003
(ii) Find the mass of acetylsalicylic acid in the flask.
0.361 g
(iii) Find the percent mass of acetylsalicylic acid in the tablet.
98.9%
Table 5: Aspirin Titration Data
Initial Burette Reading (NaOH)
28.35 mL
Final Burette Reading (NAOH)
42.60 mL
Volume of NaOH Required for
14.25 mL
Endpoint
Molarity of NaOH
0.2832 M
Concentration of ASA (Molarity)
Volume of Aspirin Solution used
50.00 mL
Find the moles and grams of ASA in your Aspirin sample using your knowledge of Stoichiometry
And Calculate % Mass of ASA in your sample as shown below:
% Mass of ASA = X 100
+)
V

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