Scenario 8.3 Titration Analysis 3 A lab group decides to test a manufacturer's claim that an antacid product contains 200 mg of sodium bicarbonate. Each tablet was placed into an Erlenmeyer flask, 10.00 mL of water was added, and then the tablets were crushed. An indicator was added to each flask, and then each sample was titrated with 0.200 mol/L hydrochloric acid. The titration evidence was collected in Table 8.3. Table 8.3 Titration of 10.00 mL of NaHCO3(aq) with 0.200 mol/L HCl(aq) Trial 1 2 Final burette reading (ml) 11.6 21.7 Initial burette reading (ml) 0.6 11.6 Volume of HCl(aq) added (mL) Indicator colour a. 169 mg b. red 3 31.7 21.7 179 mg C. 84.6 mg d. 86.5 mg orange orange 10. Use Scenario 8.3 to answer the following question. The calculated mass of sodium bicarbonate in the antacid tablet is: NaHCO3(aq) + HCl(aq) → H₂O(g) + CO2(g) + NaCl(aq) 4 41.8 31.7 orange
Scenario 8.3 Titration Analysis 3 A lab group decides to test a manufacturer's claim that an antacid product contains 200 mg of sodium bicarbonate. Each tablet was placed into an Erlenmeyer flask, 10.00 mL of water was added, and then the tablets were crushed. An indicator was added to each flask, and then each sample was titrated with 0.200 mol/L hydrochloric acid. The titration evidence was collected in Table 8.3. Table 8.3 Titration of 10.00 mL of NaHCO3(aq) with 0.200 mol/L HCl(aq) Trial 1 2 Final burette reading (ml) 11.6 21.7 Initial burette reading (ml) 0.6 11.6 Volume of HCl(aq) added (mL) Indicator colour a. 169 mg b. red 3 31.7 21.7 179 mg C. 84.6 mg d. 86.5 mg orange orange 10. Use Scenario 8.3 to answer the following question. The calculated mass of sodium bicarbonate in the antacid tablet is: NaHCO3(aq) + HCl(aq) → H₂O(g) + CO2(g) + NaCl(aq) 4 41.8 31.7 orange
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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Question
Use Scenario 8.3 to answer the following question.
The calculated mass of sodium bicarbonate in the antacid tablet is:
Transcribed Image Text:Scenario 8.3 Titration Analysis 3
A lab group decides to test a manufacturer's claim that an antacid product contains 200 mg of sodium
bicarbonate. Each tablet was placed into an Erlenmeyer flask, 10.00 mL of water was added, and then the
tablets were crushed. An indicator was added to each flask, and then each sample was titrated with 0.200
mol/L hydrochloric acid. The titration evidence was collected in Table 8.3.
Table 8.3 Titration of 10.00 mL of NaHCO3(aq) with 0.200 mol/L HCl(aq)
Trial
1
2
Final burette reading (ml)
11.6
21.7
Initial burette reading (mL)
0.6
11.6
Volume of HCl(aq) added (ml)
Indicator colour
red
179 mg
c. 84.6 mg
d. 86.5 mg
3
31.7
21.7
orange orange
10. Use Scenario 8.3 to answer the following question.
The calculated mass of sodium bicarbonate in the antacid tablet is:
a. 169 mg
b.
NaHCO3(aq) + HCl(aq) → H₂O(g) + CO₂(g) + NaCl(aq)
4
41.8
31.7
orange
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