CHEMISTRY,AP EDITION-W/ACCESS (HS)
9th Edition
ISBN: 9781285732930
Author: ZUMDAHL
Publisher: CENGAGE L
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Textbook Question
Chapter 4, Problem 6ALQ
Why is it that when something gains electrons, it is said to be reduced? What is being reduced?
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Draw the mechanism for the following reaction:
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electron(s) of an atom or a bond and should end on an atom, bond, or location where a new bond should be created.
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20.00 mL of 0.150 M NaOH is titrated with 37.75 mL of HCl. What is the molarity of the HCl?
20.00 mL of 0.025 M HCl is titrated with 0.035 M KOH. What volume of KOH is needed?
Chapter 4 Solutions
CHEMISTRY,AP EDITION-W/ACCESS (HS)
Ch. 4 - The (aq) designation listed after a solute...Ch. 4 - Characterize strong electrolytes versus weak...Ch. 4 - Distinguish between the terms slightly soluble and...Ch. 4 - Molarity is a conversion factor relating moles of...Ch. 4 - What is a dilution? What stays constant in a...Ch. 4 - When the following beakers are mixed, draw a...Ch. 4 - Differentiate between the formula equation, the...Ch. 4 - What is an acid-base reaction? Strong bases are...Ch. 4 - Define the terms oxidation, reduction, oxidizing...Ch. 4 - Prob. 10RQ
Ch. 4 - Assume you have a highly magnified view of a...Ch. 4 - You have a solution of table salt in water. What...Ch. 4 - You have a sugar solution (solution A) with...Ch. 4 - You add an aqueous solution of lead nitrate to an...Ch. 4 - Order the following molecules from lowest to...Ch. 4 - Why is it that when something gains electrons, it...Ch. 4 - Consider separate aqueous solutions of HCl and...Ch. 4 - Prob. 8ALQCh. 4 - Prob. 9ALQCh. 4 - The exposed electrodes of a light bulb are placed...Ch. 4 - Differentiate between what happens when the...Ch. 4 - A typical solution used in general chemistry...Ch. 4 - Prob. 15QCh. 4 - A student wants to prepare 1.00 L of a 1.00-M...Ch. 4 - List the formulas of three soluble bromide salts...Ch. 4 - When 1.0 mole of solid lead nitrate is added to...Ch. 4 - What is an acid and what is a base? An acid-base...Ch. 4 - A student had 1.00 L of a 1.00-M acid solution....Ch. 4 - Differentiate between the following terms. a....Ch. 4 - How does one balance redox reactions by the...Ch. 4 - Prob. 23ECh. 4 - Match each name below with the following...Ch. 4 - Calcium chloride is a strong electrolyte and is...Ch. 4 - Commercial cold packs and hot packs are available...Ch. 4 - Calculate the molarity of each of these solutions....Ch. 4 - A solution of ethanol (C2H5OH) in water is...Ch. 4 - Calculate the concentration of all ions present in...Ch. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - Prob. 33ECh. 4 - If 10. g of AgNO3 is available, what volume of...Ch. 4 - A solution is prepared by dissolving 10.8 g...Ch. 4 - A solution was prepared by mixing 50.00 mL of...Ch. 4 - Calculate the sodium ion concentration when 70.0...Ch. 4 - Suppose 50.0 mL of 0.250 M CoCl2 solution is added...Ch. 4 - Prob. 41ECh. 4 - A stock solution containing Mn2+ ions was prepaned...Ch. 4 - On the basis of the general solubility rules given...Ch. 4 - On the basis of the general solubility rules given...Ch. 4 - When the following solutions are mixed together,...Ch. 4 - When the following solutions are mixed together,...Ch. 4 - For the reactions in Exercise 47, write the...Ch. 4 - For the reactions in Exercise 48, write the...Ch. 4 - Write the balanced formula and net ionic equation...Ch. 4 - Give an example how each of the following...Ch. 4 - Write net ionic equations for the reaction, if...Ch. 4 - Write net ionic equations for the reaction, if...Ch. 4 - Separate samples of a solution of an unknown...Ch. 4 - A sample may contain any or all of the following...Ch. 4 - What mass of Na2CrO4 is required to precipitate...Ch. 4 - What volume of 0.100 M Na3PO4 is required to...Ch. 4 - What mass of iron(III) hydroxide precipitate can...Ch. 4 - What mass of silver chloride can be prepared by...Ch. 4 - A 100.0-mL aliquot of 0.200 M aqueous potassium...Ch. 4 - A 1.42-g sample of a pure compound, with formula...Ch. 4 - You are given a 1.50-g mixture of sodium nitrate...Ch. 4 - Write the balanced formula, complete ionic, and...Ch. 4 - Write the balanced formula, complete ionic, and...Ch. 4 - Write the balanced formula equation for the...Ch. 4 - Prob. 68ECh. 4 - What volume of each of the following acids will...Ch. 4 - Prob. 70ECh. 4 - Hydrochloric acid (75.0 mL of 0.250 M) is added to...Ch. 4 - A student mixes four reagents together, thinking...Ch. 4 - A 25.00-mL sample of hydrochloric acid solution...Ch. 4 - A 10.00-mL sample of vinegar, an aqueous solution...Ch. 4 - What volume of 0.0200 M calcium hydroxide is...Ch. 4 - A 30.0-mL sample of an unknown strong base is...Ch. 4 - A student titrates an unknown amount of potassium...Ch. 4 - The concentration of a certain sodium hydroxide...Ch. 4 - Assign oxidation states for all atoms in each of...Ch. 4 - Assign the oxidation state for nitrogen in each of...Ch. 4 - Assign oxidatioo numbers to all the atoms in each...Ch. 4 - Specify which of the following are...Ch. 4 - Specify which of the following equations represent...Ch. 4 - Consider the reaction between sodium metal and...Ch. 4 - Consider the reaction between oxygen (O2) gas and...Ch. 4 - Balance each of the following oxidationreduction...Ch. 4 - Balance each of the following oxidationreduction...Ch. 4 - You wish to prepare 1 L of a 0.02-M potassium...Ch. 4 - The figures below are molecular-level...Ch. 4 - Prob. 91AECh. 4 - Prob. 92AECh. 4 - Using the general solubility rules given in Table...Ch. 4 - Consider a 1.50-g mixture of magnesium nitrate and...Ch. 4 - A 1.00-g sample of an alkaline earth metal...Ch. 4 - A mixture contains only NaCl and Al2(SO4)3. A...Ch. 4 - A mixture contains only NaCl and Fe(NO3)3. A...Ch. 4 - A student added 50.0 mL of an NaOH solution to...Ch. 4 - Some of the substances commonly used in stomach...Ch. 4 - Acetylsalicylic acid is the active ingredient in...Ch. 4 - When hydrochloric acid reacts with magnesium...Ch. 4 - A 2.20-g sample of an unknown acid (empirical...Ch. 4 - Carminic acid, a naturally occurring red pigment...Ch. 4 - Chlorisondamine chloride (C14H20Cl6N2) is a drug...Ch. 4 - Saccharin (C7H5NO3S) is sometimes dispensed in...Ch. 4 - Douglasite is a mineral with the formula 2KC1...Ch. 4 - Many oxidationreduction reactions can be balanced...Ch. 4 - The blood alcohol (C2H5OH) level can be determined...Ch. 4 - Calculate the concentration of all ions present...Ch. 4 - A solution is prepared by dissolving 0.6706 g...Ch. 4 - For the following chemical reactions, determine...Ch. 4 - What volume of 0.100 M NaOH is required to...Ch. 4 - Prob. 114CWPCh. 4 - A 450.0-mL sample of a 0.257-M solution of silver...Ch. 4 - The zinc in a 1.343-g sample of a foot powder was...Ch. 4 - A 50.00-mL sample of aqueous Ca(OH)2 requires...Ch. 4 - When organic compounds containing sulfur are...Ch. 4 - Assign the oxidation state for the element Listed...Ch. 4 - A 10.00-g sample consisting of a mixture of sodium...Ch. 4 - The units of parts per million (ppm) and parts per...Ch. 4 - In the spectroscopic analysis of many substances,...Ch. 4 - In most of its ionic compounds, cobalt is either...Ch. 4 - Polychlorinated biphenyls (PCBs) have been used...Ch. 4 - Consider the reaction of 19.0 g of zinc with...Ch. 4 - A mixture contains only sodium chloride and...Ch. 4 - Prob. 127CPCh. 4 - Zinc and magnesium metal each react with...Ch. 4 - You made 100.0 mL of a lead(II) nitrate solution...Ch. 4 - Consider reacting copper(II) sulfate with iron....Ch. 4 - Consider an experiment in which two burets, Y and...Ch. 4 - Complete and balance each acid-base reaction. a....Ch. 4 - What volume of 0.0521 M Ba(OH)2 is required to...Ch. 4 - A 10.00-mL sample of sulfuric acid from an...Ch. 4 - A 0.500-L sample of H2SO4 solution was analyzed by...Ch. 4 - A 6.50-g sample of a diprotic acid requires 137.5...Ch. 4 - Citric acid, which can be obtained from lemon...Ch. 4 - Prob. 138CPCh. 4 - It took 25.06 0.05 mL of a sodium hydroxide...Ch. 4 - Prob. 140IPCh. 4 - In a 1-L beaker, 203 mL of 0.307 M ammonium...Ch. 4 - Prob. 142IPCh. 4 - The unknown acid H2X can be neutralized completely...Ch. 4 - Three students were asked to find the identity of...Ch. 4 - You have two 500.0-mL aqueous solutions. Solution...
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- 20.00 mL of 0.150 M NaOH is titrated with 37.75 mL of HCl. What is the molarity of the HCl?arrow_forward20.00 mL of 0.025 M HCl is titrated with 0.035 M KOH. What volume of KOH is needed?arrow_forward20.00 mL of 0.150 M HCl is titrated with 37.75 mL of NaOH. What is the molarity of the NaOH?arrow_forward
- Calculate the pH of 0.450 M KOH.arrow_forwardWhich does NOT describe a mole? A. a unit used to count particles directly, B. Avogadro’s number of molecules of a compound, C. the number of atoms in exactly 12 g of pure C-12, D. the SI unit for the amount of a substancearrow_forward5 What would the complete ionic reaction be if aqueous solutions of potassium sulfate and barium acetate were mixed? ed of Select one: O a 2 K SO4 + Ba2 +2 C₂H3O21 K+SO4 + Ba2+ + 2 C2H3O21 K+SO42 + Ba2 +2 C2H3O2 BaSO4 +2 K+ + 2 C2H3O estion Ob. O c. Od. 2 K SO4 +Ba2 +2 C₂H₂O₂ BaSO4 + K+ + 2 C2H3O BaSO4 + K + 2 C2H301 →Ba² +SO42 +2 KC2H3O s pagearrow_forward
- (28 pts.) 7. Propose a synthesis for each of the following transformations. You must include the reagents and product(s) for each step to receive full credit. The number of steps is provided. (OC 4) 4 steps 4 steps OH b.arrow_forwardLTS Solid: AT=Te-Ti Trial 1 Trial 2 Trial 3 Average ΔΗ Mass water, g 24.096 23.976 23.975 Moles of solid, mol 0.01763 001767 0101781 Temp. change, °C 2.9°C 11700 2.0°C Heat of reaction, J -292.37J -170.473 -193.26J AH, kJ/mole 16.58K 9.647 kJ 10.85 kr 16.58K59.64701 KJ mol 12.35k Minimum AS, J/mol K 41.582 mol-k Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn & Show your calculations for: AH in J and then in kJ/mole for Trial 1: qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J qsin = qrxn = 292.35 292.37J AH in J = 292.375 0.2923kJ 0.01763m01 =1.65×107 AH in kJ/mol = = 16.58K 0.01763mol mol qrx Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con Kelvin.) AS=AHIT (1.65×10(9.64×103) + (1.0 Jimaiarrow_forwardFor the compound: C8H17NO2 Use the following information to come up with a plausible structure: 8 This compound has "carboxylic acid amide" and ether functional groups. The peaks at 1.2ppm are two signals that are overlapping one another. One of the two signals is a doublet that represents 6 hydrogens; the other signal is a quartet that represents 3 hydrogens.arrow_forward
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