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

8th Edition

ISBN: 9780135214756

Author: Robinson

Publisher: PEARSON

See similar textbooks

Concept explainers

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.

Videos

Question

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.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 4, Problem 4.144MP

Chapter 4, Problem 4.146MP

Chapter 4 Solutions

LCPO CHEMISTRY W/MODIFIED MASTERING

Ch. 4 - Prob. 4.1P Ch. 4 - Prob. 4.2A Ch. 4 - How many moles of solute are present in 125 mLof...Ch. 4 - Prob. 4.4A Ch. 4 - Prob. 4.5P Ch. 4 - APPLY 4.7 Sulfuric acid is normally purchased at a...Ch. 4 - Prob. 4.7P Ch. 4 - Conceptual APPLY 4.9 Three different substances,...Ch. 4 - Write ne ionic equations for the following...Ch. 4 - Prob. 4.10A

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 - Prob. 4.55SP Ch. 4 - How would you prepare 250 mL of a 0.100 M solution...Ch. 4 - Pennies minted after 1982 are mostly zinc (97.5%)...Ch. 4 - A bottle of 12.0 M hydrochloric acid has only 35.7...Ch. 4 - What is the volume of the solution that would...Ch. 4 - How would you prepare 250 mL of a 0.100 M solution...Ch. 4 - Prob. 4.61SP Ch. 4 - The following aqueous solutions were tested with a...Ch. 4 - Prob. 4.63SP Ch. 4 - Individual solutions of Ba(OH)2 and H2SO4 both...Ch. 4 - A solution of HCl in water conducts electricity,...Ch. 4 - Classify each of the following substances as a...Ch. 4 - Is it possible for a molecular substance to be a...Ch. 4 - What is the total molar concentration of ions in...Ch. 4 - What is the total molar concentration of ions in...Ch. 4 - Ringer’s solution, used in the treatment of burns...Ch. 4 - What is the molarity of each ion in a solution...Ch. 4 - Prob. 4.72SP Ch. 4 - Prob. 4.73SP Ch. 4 - Write net ionic equations for the reactions listed...Ch. 4 - Write net ionic equations for the reactions listed...Ch. 4 - Which of the following substances are likely to be...Ch. 4 - Which of the following substances are likely to be...Ch. 4 - Predict whether a precipitation reaction will...Ch. 4 - Predict whether a precipitation reaction will...Ch. 4 - hich of the following solutions will not form a...Ch. 4 - Which of the following solutions will not form a...Ch. 4 - How would you prepare the following substances by...Ch. 4 - How would you prepare the following substances by...Ch. 4 - What are the mass and the identity of the...Ch. 4 - What are the mass and the identity of the...Ch. 4 - Assume that you have an aqueous mixture of NaNO3...Ch. 4 - Assume that you have an aqueous mixture of BaCl2...Ch. 4 - Assume that you have an aqueous solution of an...Ch. 4 - Assume that you have an aqueous solution of an...Ch. 4 - How could you use a precipitation reaction to...Ch. 4 - How could you u a precipitation reaction to...Ch. 4 - The following three solutions are mixed: 100.0 mL...Ch. 4 - A 250.0 g sample of a white solid is known to be a...Ch. 4 - 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 - Assume that you have 1.00 g of a mixture of...Ch. 4 - A compound with the formula XOCl2 , reacts with...Ch. 4 - Prob. 4.136MP Ch. 4 - Some metals occur naturally in their elemental...Ch. 4 - A sample weighing 14.98 g and containing a small...Ch. 4 - The solubility of an ionic compound can be...Ch. 4 - Prob. 4.140MP Ch. 4 - Prob. 4.141MP Ch. 4 - Prob. 4.142MP Ch. 4 - A sample of metal (M) reacted with both steam and...Ch. 4 - Prob. 4.144MP Ch. 4 - Prob. 4.145MP Ch. 4 - Iron content in ores can be determined by a redox...Ch. 4 - Prob. 4.147MP Ch. 4 - Salicylic acid, used in the manufacture of...Ch. 4 - Compound X contains only the elements C, H, O, and...Ch. 4 - Prob. 4.150MP Ch. 4 - Element M is prepared industrially by a two-step...Ch. 4 - Prob. 4.152MP Ch. 4 - Four solutions are prepared and mixed in the...Ch. 4 - To 100.0 mL of a solution that contains 0.120MCr(...Ch. 4 - Sodium nitrite, NaNO2 , is frequently added to...Ch. 4 - Brass is an approximately 4:1 alloy of copper and...Ch. 4 - Prob. 4.157MP Ch. 4 - Prob. 4.158MP

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

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.

Concept explainers

Videos

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.

Want to see the full answer?

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.