CHEMISTRY: THE CENTRAL SCIENCE
14th Edition
ISBN: 9780134562230
Author: Brown
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 12E
You are titrating an acidic solution with a basic one, and just realized you forgot to add the indicator that tells you when the equivalence point is reached. In this titration, the indicator turns blue at the equivalence point from an initially colorless solution. You quickly grab a bottle of indicator and add some to your titration beaker, and the whole solution turns dark blue. What do you do now?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
CHEMISTRY: THE CENTRAL SCIENCE
Ch. 4.1 - If you have an aqueous solution that contains 1.5...Ch. 4.1 - If you were to draw diagrams representing aqueous...Ch. 4.2 - Prob. 4.2.1PECh. 4.2 - Classify the following compounds as soluble or...Ch. 4.2 - Yes or No: Will a precipitate form when solutions...Ch. 4.2 - a. What compound precipitates when aqueous...Ch. 4.2 - What happens when you mix an aqueous solution of...Ch. 4.2 -
Write the net ionic equation for the...Ch. 4.3 - Prob. 4.5.1PECh. 4.3 -
Imagine a diagram showing 10 Na + ions and 10 OH-...
Ch. 4.3 -
Which of these substances, when dissolved in...Ch. 4.3 - Consider solutions in which 0.1 mol of each of the...Ch. 4.3 -
Which is the correct ionic equation for the...Ch. 4.3 - For the reaction of phosphorous acid (H3PO3) and...Ch. 4.4 - Prob. 4.8.1PECh. 4.4 - What is the oxidation state of the boldfaced...Ch. 4.4 - Which of the following statements is true about...Ch. 4.4 - Prob. 4.9.2PECh. 4.4 - Which of these metals is the easiest to oxidize?...Ch. 4.4 - Which of the following metals will be oxidized by...Ch. 4.5 - Prob. 4.11.1PECh. 4.5 - Calculate the molarity of a solution made by...Ch. 4.5 - Prob. 4.12.1PECh. 4.5 - What is the molar concentration of K+ions in a...Ch. 4.5 - Prob. 4.13.1PECh. 4.5 -
How many grams of Na2SO4 are there in 15 mL of...Ch. 4.5 - Prob. 4.14.1PECh. 4.5 - What volume of 2.50 M lead(II) nitrate solution...Ch. 4.6 - How many milligrams of sodium sulfide are needed...Ch. 4.6 -
How many grams of NaOH are needed to neutralize...Ch. 4.6 - Prob. 4.16.1PECh. 4.6 - Prob. 4.16.2PECh. 4.6 - Practice Exercise 1 A mysterious white powder is...Ch. 4.6 - Prob. 4.17.2PECh. 4 - Prob. 1DECh. 4 - Prob. 1ECh. 4 - Aqueous solutions of three different substances,...Ch. 4 -
4 3 Use the molecular representations shown here...Ch. 4 - The concept of chemical equilibrium is very...Ch. 4 -
4 5 You are presented with a white solid and told...Ch. 4 - Which of the following ions will always be a...Ch. 4 - The labels have fallen off three bottles...Ch. 4 - Explain how a redox reaction involves electrons in...Ch. 4 - Prob. 9ECh. 4 - Prob. 10ECh. 4 -
4.11 Which data set, of the two graphed here,...Ch. 4 - You are titrating an acidic solution with a basic...Ch. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 -
4.15 We have learned in this chapter that many...Ch. 4 - Prob. 16ECh. 4 -
4.17 Specify what ions are present in solution...Ch. 4 - Prob. 18ECh. 4 - Prob. 19ECh. 4 - Acetone. CH3COCH3, is a nonelectrolyte;...Ch. 4 -
4.21 Using solubility guidelines, predict whether...Ch. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - Which ions remain in solution, unreacted, after...Ch. 4 - Write balanced net ionic equations for the...Ch. 4 -
4.27 Separate samples of a solution of an unknown...Ch. 4 - Prob. 28ECh. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - State whether each of the following statements is...Ch. 4 - State whether each of the following statements is...Ch. 4 -
4.35 Label each of the following substances as an...Ch. 4 - An aqueous solution of an unknown solute is tested...Ch. 4 - Prob. 37ECh. 4 - Classify each of the following aqueous solutions...Ch. 4 - Complete and balance the following molecular...Ch. 4 - Write the balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 -
4.42 Because the oxide ion is basic, metal oxides...Ch. 4 -
4.43 Magnesium carbonate, magnesium oxide, and...Ch. 4 -
4.44 As K20 dissolves in water, the oxide ion...Ch. 4 - True or false: If a substance is oxidized, it is...Ch. 4 - Prob. 46ECh. 4 - Which region of the periodic table shown here...Ch. 4 - Determine the oxidation number of sulfur in each...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Determine the oxidation number for the indicated...Ch. 4 - Which element is oxidized, and which is reduced in...Ch. 4 - Which of the following are redox reactions? For...Ch. 4 -
4.53 Write balanced molecular and net ionic...Ch. 4 - Write balanced molecular and net ionic equations...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - Using the activity series (Table 4.5), write...Ch. 4 - The metal cadmium tends to form Cd2+ ions. The...Ch. 4 -
4.58 The following reactions (note that the...Ch. 4 - Is the concentration of a solution an intensive or...Ch. 4 - Prob. 60ECh. 4 - Calculate the molarity of a solution that contains...Ch. 4 -
4.62
Calculate the molarity of a solution made by...Ch. 4 - Prob. 63ECh. 4 - Prob. 64ECh. 4 - Prob. 65ECh. 4 -
4.66 The average adult male has a total blood...Ch. 4 -
4.67
How many grams of ethanol, CH2CH2OH should...Ch. 4 - Prob. 68ECh. 4 - Which will have the highest concentration of...Ch. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Prob. 73ECh. 4 - Prob. 74ECh. 4 - Prob. 75ECh. 4 - Prob. 76ECh. 4 - Prob. 77ECh. 4 - Prob. 78ECh. 4 - Prob. 79ECh. 4 - Prob. 80ECh. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - Some sulfuric acid is spilled on a lab bench You...Ch. 4 -
4.84 The distinctive odor of vinegar is due to...Ch. 4 - A 4.36-g sample of an unknown alkali metal...Ch. 4 -
4.86 An 8.65-g sample of an unknown group 2A...Ch. 4 - A solution of 100.0 mL of 0.200 M KOH is mixed...Ch. 4 -
4.88 A solution is made by mixing 15.0 g of...Ch. 4 - Prob. 89ECh. 4 - A 1.248-9 sample of limestone rock is pulverized...Ch. 4 - 4.91 Uranium hexafluoride, UF6, is processed to...Ch. 4 - The accompanying photo shows the reaction between...Ch. 4 - Prob. 93AECh. 4 -
4.94 You choose to investigate some of the...Ch. 4 -
4 95 Antacids are often used to relieve pain and...Ch. 4 -
4 96 The commercial production of nitric acid...Ch. 4 - Consider the following reagents: zinc, copper,...Ch. 4 - 98 Bronze is a solid solution of Cu(s) and Sn(s);...Ch. 4 - Prob. 99AECh. 4 - Prob. 100AECh. 4 -
4.101 Hard water contains Ca2+ , Mg2 + , and Fe2+...Ch. 4 - Tartaric acid. H2C4H4O6, has two acidic hydrogens....Ch. 4 - Prob. 103AECh. 4 - A solid sample of Zn(OH)2 is added to 0.350 L of...Ch. 4 - Prob. 105IECh. 4 - Prob. 106IECh. 4 - Prob. 107IECh. 4 - A fertilizer railroad car carrying 34,300 gallons...Ch. 4 - Prob. 109IECh. 4 - Prob. 110IECh. 4 - Prob. 111IECh. 4 - Prob. 112IECh. 4 - Prob. 113IECh. 4 - Prob. 114IECh. 4 -
4.115 Federal regulations set an upper limit of...
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.Similar questions
- Titration of a 20.0-mL sample of acid rain required 1.7 mL of 0.08 11 M NaOH to reach the end point. If we assume that the acidity of the rain is due to the presence of sulfuric acid, what was the concentration of sulfuric acid in this sample of rain?arrow_forwardOne half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total solution volume after mixing is 750. mL, what is the concentration of hydrochloric acid in the resulting solution? What is its pH?arrow_forwardA student mixes four reagents together, thinking that the solutions will neutralize each other. The solutions mixed together are 50.0 mL of 0.100M hydrochloric acid, 100.0 mL of 0.200 M of nitric acid, 500.0 mL of 0.0100 M calcium hydroxide, and 200.0 mL of 0.100 M rubidium hydroxide. Did the acids and bases exactly neutralize each other? If not, calculate the concentration of excess H+ or OH ions left in solution.arrow_forward
- Two students titrate different samples of the same solution of HCl using 0.100 M NaOH solution and phenolphthalein indicator (Figure 4.12). The first student pipets 20.0 mL of the HCl solution into a flask, adds 20 mL of distilled water and a few drops of phenolphthalein solution, and titrates until a lasting pink color appears. The second student pipets 20.0 mL of the HCl solution into a flask, adds 60 mL of distilled water and a few drops of phenolphthalein solution, and titrates to the first lasting pink color. Each student correctly calculates the molarity of an HCl solution. What will the second students result be? (a) four times less than the first students result (b) four times greater than the first students result (c) two times less than the first students result (d) two times greater than the first students result (e) the same as the first students resultarrow_forwardA student is asked to identify the metal nitrate present in an aqueous solution. The cation in the solution can be either Na+, Ba2+, Ag+, or Ni2+. Results of solubility experiments are as follows: unknown + chloride ions—no precipitate unknown + carbonate ions—precipitate unknown + sulfate ions—precipitate What is the cation in the solution?arrow_forwardThe procedures and principles of qualitative analysis are coy cred in many introductory chemistry laboratory courses. In qualitative analysis, students learn to analyze mixtures of the common positive and negative ions, separating and confirming the presence of the particular ions in the mixture. One of the first steps in such an analysis is to treat the mixture with hydrochloric acid, which precipitates and removes silver ion, lead(II) ion, and mercury(I) ion from the aqueous mixture as the insoluble chloride salts. Write balanced net ionic equations for the precipitation reactions of these three cations with chloride ion.arrow_forward
- Reactions represented by the following equations take place in water solutions. Write each molecular equation in total ionic form, then identify spectator ions and write the equations in net ionic form. Solids that do not dissolve are designated by s, gases that do not dissolve are designated by g, and substances that dissolve but do not dissociate appear in blue. a. H2O(l)+Na2SO3(aq)+SO2(aq)2NaHSO3(aq) b. 3Cu(s)+8HNO3(aq)3Cu(NO3)2(aq)+2NO(g)+4H2O(l) c. 2HCl(aq)+CaO(s)CaCl2(aq)+H2O(l) d. CaCO3(s)+2HCl(aq)CaCl2(aq)+CO2(aq)+H2O(l) e. MnO2(s)+4HCl(aq)MnCl2(aq)+Cl2(aq)+2H2O(l) f. 2AgNO3(aq)+Cu(s)Cu(NO3)2(aq)+2Ag(s)arrow_forwardAn aqueous sample is known to contain either Sr2+ or Hg22+ ions. Use the solubility rules (see Table 4.1) to propose an experiment that will determine which ion is present.arrow_forwardHydrochloric acid. HCl, with a concentration of 0.100 M can be purchased from chemical supply houses, and this solution can be used to standardize the solution of a base. If titrating 25.00 mL of a sodium hydroxide solution to the equivalence point requires 29.67 mL of 0.100 M HCI, what is the concentration of the base?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781285199030Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry by OpenStax (2015-05-04)
Chemistry
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:OpenStax
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781285199030
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
World of Chemistry, 3rd edition
Chemistry
ISBN:9781133109655
Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher:Brooks / Cole / Cengage Learning
Introductory Chemistry: A Foundation
Chemistry
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Precipitation Reactions: Crash Course Chemistry #9; Author: Crash Course;https://www.youtube.com/watch?v=IIu16dy3ThI;License: Standard YouTube License, CC-BY