Explanation We need to calculate the amount of MnO 4 - that was used during the titration: To complete the reaction 15.05 mL of 0.0247 M KMnO 4 is required. One mole of KMnO 4 releases 1 mole of MnO 4 - ions. 15 .05 mL × 1L 1000mL × 0 .0247 mol KMnO 4 1L × 1 mol MnO 4 - 1 mol KMnO 4 = 0 .000372 mol MnO 4 - Therefore, the amount of MnO 4 - that was used during the titration is 0.000372 mol MnO 4-. Now, we can relate this value to the moles of H+ from oxalic acid in the sample using the stoichiometry of the reaction between oxalic acid and the permanganate ion: 0 .000372 mol MnO 4 - × 5 mol oxalic acid 2 mol MnO 4 - × 2 mol H + 1 mol oxalic acid = 0 .00186 mol H + . We can calculate the mass of oxalic acid using the molar mass of oxalic acid. 0 .000186 mol H + × 1 mol oxalic acid 1 mol H + × 90 .0 g oxalic acid 1 mol oxalic acid = 0 .167 g oxalic acid . Now, we need to calculate the total number of moles of H+ in the solution. 27 .15 mL × 1 L 1000 mL × 0 .100 mol NaOH 1 L × 1 mol OH - 1 mol NaOH × 1 mol H + 1 mol OH - = 0 .00272 mol H + The total number of moles of H+ in the solution is 0.00272 mol H+ We can calculate the number of moles of H+ that originated from acetic acid, and thus the mass of acetic acid. Mol H + from acetic acid = ( total mol H + ) - ( H + from oxalic acid ) = 0

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ISBN: 9780135216972

Author: Robinson

Publisher: PEARSON CO

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

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Chapter 4, Problem 4.145MP

Interpretation Introduction

Interpretation:

The mass percent of each acid in the mixture needs to be determined.

Concept introduction:

Mass generally is described in grams (g) and kilograms (kg). Where W is weight, m is mass, and g is acceleration due to gravity, which is about 9.8 m/s2 on Earth.

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Chapter 4, Problem 4.144MP

Chapter 4, Problem 4.146MP

Chapter 4 Solutions

EBK CHEMISTRY

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Ch. 4 - Will a precipitation reaction occur when aqueous...Ch. 4 - APPLY 4.13 How might you use a precipitation...Ch. 4 - Conceptual PRACTICE 4.14 An aqueous solution...Ch. 4 - Conceptual APPLY 4.15 A solution containing the...Ch. 4 - Name the acids HI and HBrO2 .Ch. 4 - APPLY 4.17 Give likely chemical formulas...Ch. 4 - PRACTICE 4.18 Write a balanced ionic equation and...Ch. 4 - Milk of magnesia (active ingredient: magnesium...Ch. 4 - Prob. 4.19P Ch. 4 - Prob. 4.20A Ch. 4 - Prob. 4.21P Ch. 4 - Assume that the buret contains H+ ions, the flask...Ch. 4 - PRACTICE 4.24 Assign an oxidation number to each...Ch. 4 - APPLY 4.25 Chlorine can have several different...Ch. 4 - Identify the oxidizing agent and reducing agent in...Ch. 4 - APPLY 4.27 Police often use a Breathalyzer test to...Ch. 4 - PRACTICE 4.28 Predict whether the following...Ch. 4 - Use the following reactions to arrange the...Ch. 4 - Prob. 4.29P Ch. 4 - Prob. 4.30A Ch. 4 - A viramin-fortified brand of a sports...Ch. 4 - The nutritional label on Power ade specifies that...Ch. 4 - Prob. 4.33P Ch. 4 - One way to analyze a sports drink for the...Ch. 4 - To measure the concentration of chloride ions ina...Ch. 4 - The flavor of the first batch of Gatorade was...Ch. 4 - Prob. 4.37CP Ch. 4 - Prob. 4.38CP Ch. 4 - Assume that an aqueous solution Of a cation,...Ch. 4 - The following pictures represent aqueous solutions...Ch. 4 - Prob. 4.41CP Ch. 4 - The concentration of an aqueous solution of NaOCl...Ch. 4 - Assume that the electrical conductivity of a...Ch. 4 - Based on the positions in the periodic table,...Ch. 4 - The following two redox reactions occur between...Ch. 4 - Prob. 4.46SP Ch. 4 - How many grams of solute would you use to prepare...Ch. 4 - How many milliliters of a 0.45 M BaCl2 solution...Ch. 4 - How many milliliters of a 0.350 M KOH solution...Ch. 4 - The sterile saline solution used to rinse contact...Ch. 4 - Prob. 4.51SP Ch. 4 - Copper reacts with dilute nitric acid according to...Ch. 4 - Prob. 4.53SP Ch. 4 - How many grams of solute would you use to prepare...Ch. 4 - 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Assume that you are given a solution of an unknown...Ch. 4 - Why do we use a double arrow () to show the...Ch. 4 - Write balanced ionic equations for the following...Ch. 4 - Write balanced ionic equations for the following...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 - A flask containing 450 mL of 0.500 M HBr was...Ch. 4 - The odor of skunks is caused by chemical compounds...Ch. 4 - Prob. 4.102SP Ch. 4 - Prob. 4.103SP Ch. 4 - How many milliliters of 1.00 M KOH must be added...Ch. 4 - How many milliliters of 2.00 M HCl must be added...Ch. 4 - If the following solutions are mixed, is the...Ch. 4 - If the following solutions are mixed, is the...Ch. 4 - Prob. 4.108SP Ch. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Assign oxidation numbers to each element in the...Ch. 4 - Nitrogen can have several different oxidation...Ch. 4 - Prob. 4.113SP Ch. 4 - Prob. 4.114SP Ch. 4 - Where in the periodic table are the most easily...Ch. 4 - In each of the following instances, tell whether...Ch. 4 - Tell for each of the following substances whether...Ch. 4 - Which element is oxidized and which is reduced in...Ch. 4 - Which element is oxidized and which is reduced in...Ch. 4 - Use the activity series of metals (Table 4.5) to...Ch. 4 - Neither strontium (Sr) nor antimony (Sb) is shown...Ch. 4 - (a) Use the following reactions to arrange the...Ch. 4 - Prob. 4.123SP Ch. 4 - Iodine, I2 , reacts with aqueous thiosulfate ion...Ch. 4 - How many milliliters of 0.250MNa2S2O3 solution is...Ch. 4 - Dichromate ion, Cr2O72 reacts with aqueous...Ch. 4 - A volume of 18.72 mL of 0.1500MK2Cr2O7 solution...Ch. 4 - What is the molar concentration of As(III) in a...Ch. 4 - Standardized solutions of KBrO3 are frequently...Ch. 4 - The metal content of iron in ores can be...Ch. 4 - Prob. 4.131SP Ch. 4 - Alcohol levels in blood can he determined by a...Ch. 4 - Calcium levels in blood can be determined by...Ch. 4 - 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Prob. 4.157MP Ch. 4 - Prob. 4.158MP

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The mass percent of each acid in the mixture needs to be determined. Concept introduction: Mass generally is described in grams (g) and kilograms (kg). Where W is weight, m is mass, and g is acceleration due to gravity, which is about 9.8 m/s2 on Earth.

Solution Summary: The author explains that the mass percent of each acid in the mixture needs to be determined. To complete the reaction, 15.05 mL of 0.0247 MnO 4 is required.

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Interpretation: The mass percent of each acid in the mixture needs to be determined. Concept introduction: Mass generally is described in grams (g) and kilograms (kg). Where W is weight, m is mass, and g is acceleration due to gravity, which is about 9.8 m/s2 on Earth.

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Chapter 4 Solutions

Interpretation:

The mass percent of each acid in the mixture needs to be determined.

Concept introduction:

Mass generally is described in grams (g) and kilograms (kg). Where W is weight, m is mass, and g is acceleration due to gravity, which is about 9.8 m/s2 on Earth.