Knowing the mass of sodium bicarbonate used, one can calculate the moles of sodium bicarbonate and the moles of HCl. With the volume readings from the burette and the moles of HCl calculated, the molarity of the HCl solution can be found.Na2CO3 is mixed with 25 mL of water in the titrated flask. final reading - Initial of HCl in burette is amount used. Show workA.) determine the concentration of the HCl solution from the data for the standardization of the HCl with the Na2CO3.B.)calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol).C.)calculate the % by mass of aspirin in the tablet. Data:Concentration of NaOHSolutionsMass of Aspirin Tablet #1Mass of Aspirin Tablet #2Volume of NaOH mixed with Tablet #1Volume of NaOH mixed with tablet #2Standardization of HCI Trial #1Mass of Na₂CO3Initial Volume of HCI in buretteVolume of HCI in burette at equivalence pointStandardization of HCI Trial #2Mass of Na₂CO3Initial Volume of HCI in buretteVolume of HCI in burette at equivalence pointTitration of NaOH / Tablet solutionsTitration #1 - Initial Volume of HCI in buretteTitration #1 - Final Volume of HCI in buretteTitration #2 - Initial Volume of HCI in buretteTitration #2 - Final Volume of HCI in burette0.098Value0.3700.37250.0050.00Value0.0537.7012.61Value0.06212.6118.82Value10.8622.714.2316.78gmLImLgmLImLgmLmLmLmLmLmL

Knowing the mass of sodium bicarbonate used, one can calculate the moles of sodium bicarbonate and the moles of HCl. With the volume readings from the burette and the moles of HCl calculated, the molarity of the HCl solution can be found. Na2CO3 is mixed with 25 mL of water in the titrated flask. final reading - Initial of HCl in burette is amount used. Show work A.) determine the concentration of the HCl solution from the data for the standardization of the HCl with the Na2CO3. B.)calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol). C.)calculate the % by mass of aspirin in the tablet.

Knowing the mass of sodium bicarbonate used, one can calculate the moles of sodium bicarbonate and the moles of HCl. With the volume readings from the burette and the moles of HCl calculated, the molarity of the HCl solution can be found. Na2CO3 is mixed with 25 mL of water in the titrated flask. final reading - Initial of HCl in burette is amount used. Show work A.) determine the concentration of the HCl solution from the data for the standardization of the HCl with the Na2CO3. B.)calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol). C.)calculate the % by mass of aspirin in the tablet.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.26QAP

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Question

Na2CO3 is mixed with 25 mL of water in the titrated flask. final reading - Initial of HCl in burette is amount used. Show work

A.) determine the concentration of the HCl solution from the data for the standardization of the HCl with the Na₂CO₃.

B.)calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass = 180.16 g/mol).

C.)calculate the % by mass of aspirin in the tablet.

Data:
Concentration of NaOH
Solutions
Mass of Aspirin Tablet #1
Mass of Aspirin Tablet #2
Volume of NaOH mixed with Tablet #1
Volume of NaOH mixed with tablet #2
Standardization of HCI Trial #1
Mass of Na₂CO3
Initial Volume of HCI in burette
Volume of HCI in burette at equivalence point
Standardization of HCI Trial #2
Mass of Na₂CO3
Initial Volume of HCI in burette
Volume of HCI in burette at equivalence point
Titration of NaOH / Tablet solutions
Titration #1 - Initial Volume of HCI in burette
Titration #1 - Final Volume of HCI in burette
Titration #2 - Initial Volume of HCI in burette
Titration #2 - Final Volume of HCI in burette
0.098
Value
0.370
0.372
50.00
50.00
Value
0.053
7.70
12.61
Value
0.062
12.61
18.82
Value
10.86
22.71
4.23
16.78
g
mL
ImL
g
mL
ImL
g
mL
mL
mL
mL
mL
mL

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