1. A 4.00 mL sample of vinegar (active ingredient, acetic acid) was titrated with 0.1250M NAOH according to the following equation: NAC2H3O2 + HOH HC2H3O2 + NaOH 25.19 mL of base was needed to reach the end point. Calculate the molarity of the acetic acid. 2. Calculate the grams of acetic acid in one liter of the vinegar. 3. The 4.00 mL sample of vinegar had a mass of 4.056 g. Calculate the grams of vinegar in one liter. 4. Calculate the % acetic acid in the vinegar. % acetic acid g acetic acid g vinegar x 100 95

1. A 4.00 mL sample of vinegar (active ingredient, acetic acid) was titrated with 0.1250M NAOH according to the following equation: NAC2H3O2 + HOH HC2H3O2 + NaOH 25.19 mL of base was needed to reach the end point. Calculate the molarity of the acetic acid. 2. Calculate the grams of acetic acid in one liter of the vinegar. 3. The 4.00 mL sample of vinegar had a mass of 4.056 g. Calculate the grams of vinegar in one liter. 4. Calculate the % acetic acid in the vinegar. % acetic acid g acetic acid g vinegar x 100 95

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

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

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

Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions

Section: Chapter Questions

Problem 105GQ: Sodium bicarbonate and acetic acid react according to the equation NaHCO3(aq) + CH3CO2H(aq) ...

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An antacid tablet contains sodium hydrogen carbonate, NaHCO3, and inert ingredients. A 0.465-g sample of powdered tablet was mixed with 53.3 mL of 0.190 M HCl (hydrochloric acid). The mixture was allowed to stand until it reacted. NaHCO3(s)+HCl(aq)NaCl(aq)+H2O(l)+CO2(g) The excess hydrochloric acid was titrated with 54.6 mL of 0.128 M NaOH (sodium hydroxide). HCl(aq)+NaOH(aq)NaCl(aq)+H2O(l) What is the percentage of sodium hydrogen carbonate in the antacid?
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