Show all calculations clearly. A student dissolves 0.326 g of a powdered antacid in 32.36 mL of 0.1034 M HCI. The student boils the mixture and then allows it to cool. Finally, the student adds bromophenol blue indicator to the mixture, which turns yellow. 1. Calculate the total number of moles of HCI added to the antacid. 2. Boiling the mixture helps get rid of dissolved CO2. What is the source of most of this CO2? 3. Suppose that 11.72 mL of 0.1506 M NaOH is required to turn the solution from yellow to blue. Calculate the total moles of OH added. 4. Calculate the difference between the total moles of HCI added and the total moles of NaOH added. 5. How many moles of HCI reacted with the antacid? How many equivalents of antacid are present in the sample? 6. Find the number of equivalents of antacid present per gram of antacid. Note that the number moles of HCI that react with the antacid equals the number of equivalents of antacid present. 7. Given that the antacid costs $5.99 per 100 tablet bottle and that the average mass of a tablet i 650 mg, calculate the cost per equivalent (in $/eq) of this antacid.
Show all calculations clearly. A student dissolves 0.326 g of a powdered antacid in 32.36 mL of 0.1034 M HCI. The student boils the mixture and then allows it to cool. Finally, the student adds bromophenol blue indicator to the mixture, which turns yellow. 1. Calculate the total number of moles of HCI added to the antacid. 2. Boiling the mixture helps get rid of dissolved CO2. What is the source of most of this CO2? 3. Suppose that 11.72 mL of 0.1506 M NaOH is required to turn the solution from yellow to blue. Calculate the total moles of OH added. 4. Calculate the difference between the total moles of HCI added and the total moles of NaOH added. 5. How many moles of HCI reacted with the antacid? How many equivalents of antacid are present in the sample? 6. Find the number of equivalents of antacid present per gram of antacid. Note that the number moles of HCI that react with the antacid equals the number of equivalents of antacid present. 7. Given that the antacid costs $5.99 per 100 tablet bottle and that the average mass of a tablet i 650 mg, calculate the cost per equivalent (in $/eq) of this antacid.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter15: Additional Aqueous Equilibria
Section: Chapter Questions
Problem 110QRT: Consider the nanoscale-level representations for Question 110 of the titration of the aqueous weak...
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Transcribed Image Text:Show all calculations clearly. A student dissolves 0.326 g of a powdered antacid in 32.36 mL of
0.1034 M HCI. The student boils the mixture and then allows it to cool. Finally, the student adds
bromophenol blue indicator to the mixture, which turns yellow.
1. Calculate the total number of moles of HCI added to the antacid.
2. Boiling the mixture helps get rid of dissolved CO2. What is the source of most of this CO2?
3. Suppose that 11.72 mL of 0.1506 M NaOH is required to turn the solution from yellow to blue.
Calculate the total moles of OH added.
4. Calculate the difference between the total moles of HCI added and the total moles of NaOH
added.
5. How many moles of HCI reacted with the antacid? How many equivalents of antacid are
present in the sample?
6. Find the number of equivalents of antacid present per gram of antacid. Note that the number of
moles of HCl that react with the antacid equals the number of equivalents of antacid present.
7. Given that the antacid costs $5.99 per 100 tablet bottle and that the average mass of a tablet is
650 mg, calculate the cost per equivalent (in $leq) of this antacid.
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