From the titrations below, calculate the molarity of the NaOH solution in each of the f ollowing? Make sure you balance the equations. a) NaOH + HCl → NaCl + H2O 32.00 ml of NaOH is required to completely react with 25.00 ml of 0.150 M HCl. ___________ b) NaOH + H2SO4 → Na2SO4 + H2O 42.00 ml of NaOH is required to completely react with 18.00 ml of 0.10M H 2SO4 . __________

From the titrations below, calculate the molarity of the NaOH solution in each of the f ollowing? Make sure you balance the equations. a) NaOH + HCl → NaCl + H2O 32.00 ml of NaOH is required to completely react with 25.00 ml of 0.150 M HCl. _ b) NaOH + H2SO4 → Na2SO4 + H2O 42.00 ml of NaOH is required to completely react with 18.00 ml of 0.10M H 2SO4 .

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter14: Acid- Base Equilibria

Section: Chapter Questions

Problem 114CP: Consider the following two acids: In two separate experiments the pH was measured during the...

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4) The next 9 questions are related to the titration of 20.00 mL of a 0.0750 M acetic acid solution with 0.0700 M KOH. What is the volume of the solution at the equivalence point (in mL)? (This is the total volume, titrant added plus original volume of the analyt\ e solution) ((The answer is not 21.42 or 41))
Another chemistry student in a different laboratory titrated 18.0 mL of unknown H2SO4 (aq) solution with 38.2 mL of 0.163 M KOH to its final endpoint. What is the unknown molarity concentration of the sulfuric acid solution that went through the acid/base neutralization reaction shown below?1 H2SO4 (aq) + 2 KOH (aq) --> K2SO4 (aq) + 2 H2O (l)(note: Your "titration" equation will still work you just need to account for the fact that for every 1 mol of acid 2 mols of base are needed to fully react them together.)
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10. A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration ofa 3.06 g sample of vinegar. a.Calculate the number of moles of acetic acid in the vinegar sample. b.Calculate the mass of acetic acid in the vinegar sample. The molar mass of acetic acid is 60.05 g/mol. c.Calculate the percent by mass of acetic acid in the vinegar sample. Assume the density of the vinegar is 1.00 g/mL. Express the percent acetic acid in the vinegar to the correct number of significant figures.
A student performs this experiment but forgets to remove an air bubble from the N a O H buret valve. During the course of the titration, the air bubble did NOT disappear. Would the measured volume of N a O H added in the back-titration be incorrectly high, incorrectly low, or will the volume remain unchanged? Question 2 options: remains unchanged incorrectly low incorrectly high
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This is about determinition of acid content in vinegar through titration, please answer the questions. Please answer only the items nummber 4-5. i only put other questions for guide. 1. What is the purpose of standardization? 2. What is the primary standard used (name and formula)? ANS: KHP 3. Suppose that the KHP is not completely dry. Will the reported molar concentration of the sodium hydroxide solution be higher, lower, or unaffected? Explain. 4. In preparing the buret for titration the final rinse is with the NaOH titrant rather than with distilled water. Explain. 5. The procedure suggests the addition of only 2 drops of phenolphthalein. What will be the effect to the analysis if larger amount of phenolphthalein is added?
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In this experiment, you will determine the amount (percent) of potassium hydrogen phthalate (KHP) that is in an impure sample. You will determine the percent of KHP via titration using NaOH with known molarity. The reaction will follow, KHC8H4O4 (aq) + NaOH (aq) ---------> KNaC8H4O4 (aq) + H2O (l) At the endpoint, the moles of KHP will equal the moles of NaOH. You will use phenolphthalein as the indicator. The endpoint of the reaction will be a light pink solution color. How will you know the reaction is over? About how much KHP will be used in the titration? Which 3 substances go into the 250 mL Erlenmeyer flask for the titration? What is the mole to mole ratio in the reaction of KHP and NaOH? What solution goes into the buret?
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Mercuric chloride with a concentration of 10-8 M is discharged to a fresh water stream with an initial chloride concentration of 10-3 M. Determine the concentration of Hg+2, HgCl, HgCl3-, and HgCl4-2.