Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
8th Edition
ISBN: 9781285199030
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
Question
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Chapter 15, Problem 80QAP
Interpretation Introduction

(a)

Interpretation:

The normality of the given solution is to be calculated.

Concept Introduction:

The normality of a solution is defined as the gram equivalent weight of a solute dissolved in one liter of the solution. The normality of solution is given as,

N=neqV

Where,

  • neq represents the number of equivalents of the solute.
  • V represents the volume of the solution.

Expert Solution
Check Mark

Answer to Problem 80QAP

The normality of the given NaOH solution is 0.277N.

Explanation of Solution

The mass of NaOH dissolved in solution is 0.113g.

The volume of the NaOH solution is 10.2mL.

The molar mass of NaOH is 39.9979gmol1.

The dissociation reaction of NaOH in water is represented as,

NaOHaqNa+aq+OHaq

The number of OH ion released by NaOH is 1.

Hence the equivalence factor of NaOH is 1eqmol1.

The equivalent mass of a substance is given as,

Meq=Mmn

Where,

  • Mm represents the molar mass of the substance.
  • n represents the equivalence factor of the substance.

Substitute the value of Mm and n in the above equation.

Meq=39.9979gmol11eqmol1=39.9979geq1

The normality of a solution is given as,

N=mVMeq

Where,

  • m represents the mass of the solute.
  • Meq represents the equivalent mass of the solute.
  • V represents the volume of the solution.

Substitute m, Meq and V in the above equation.

N=0.113g10.2mL1L1000mL39.9979geq1=0.277eqL11N1eqL1=0.277N

Therefore, the normality of the given solution is 0.277N.

Interpretation Introduction

(b)

Interpretation:

The normality of the given solution is to be calculated.

Concept Introduction:

The normality of a solution is defined as the gram equivalent weight of a solute dissolved in one liter of the solution. The normality of solution is given as,

N=neqV

Where,

  • neq represents the number of equivalents of the solute.
  • V represents the volume of the solution.

Expert Solution
Check Mark

Answer to Problem 80QAP

The normality of the given CaOH2 solution is 3.37×103N.

Explanation of Solution

The mass of CaOH2 dissolved in solution is 12.5mg.

The volume of the CaOH2 solution is 100mL.

The molar mass of CaOH2 is 74.093gmol1.

The dissociation reaction of CaOH2 in water is represented as,

CaOH2aq2OHaq+Ca2+aq

The number of OH ion released by CaOH2 is 2.

Hence the equivalence factor of CaOH2 is 2eqmol1.

The equivalent mass of a substance is given as,

Meq=Mmn

Where,

  • Mm represents the molar mass of the substance.
  • n represents the equivalence factor of the substance.

Substitute the value of Mm and n in the above equation.

Meq=74.093gmol12eqmol1=37.0465geq1

The normality of a solution is given as,

N=mVMeq

Where,

  • m represents the mass of the solute.
  • Meq represents the equivalent mass of the solute.
  • V represents the volume of the solution.

Substitute m, Meq and V in the above equation.

N=12.5mg1g1000mg100mL1L1000mL37.0465geq1=3.37×103eqL11N1eqL1=3.37×103N

Therefore, the normality of the given solution is 3.37×103N.

Interpretation Introduction

(c)

Interpretation:

The normality of the given solution is to be calculated.

Concept Introduction:

The normality of a solution is defined as the gram equivalent weight of a solute dissolved in one liter of the solution. The normality of solution is given as,

N=neqV

Where,

  • neq represents the number of equivalents of the solute.
  • V represents the volume of the solution.

Expert Solution
Check Mark

Answer to Problem 80QAP

The normality of the given H2SO4 solution is 1.63N.

Explanation of Solution

The mass of H2SO4 dissolved in solution is 12.4g.

The volume of the H2SO4 solution is 155mL.

The molar mass of H2SO4 is 98.079gmol1.

The dissociation reaction of H2SO4 in water is represented as,

H2SO4aq2H+aq+SO42aq

The number of H+ ion released by H2SO4 is 2.

Hence the equivalence factor of H2SO4 is 2eqmol1.

The equivalent mass of a substance is given as,

Meq=Mmn

Where,

  • Mm represents the molar mass of the substance.
  • n represents the equivalence factor of the substance.

Substitute the value of Mm and n in the above equation.

Meq=98.079gmol12eqmol1=49.0395geq1

The normality of a solution is given as,

N=mVMeq

Where,

  • m represents the mass of the solute.
  • Meq represents the equivalent mass of the solute.
  • V represents the volume of the solution.

Substitute m, Meq and V in the above equation.

N=12.4g155mL1L1000mL49.0395geq1=1.63eqL11N1eqL1=1.63N

Therefore, the normality of the given solution is 1.63N.

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Chapter 15 Solutions

Introductory Chemistry: A Foundation

Ch. 15.8 - ercise 15.10 Calculate the normality of a solution...Ch. 15.8 - Prob. 15.11SCCh. 15 - ou have a solution of table sail in water. What...Ch. 15 - onsider a sugar solution (solution A) with...Ch. 15 - You need to make 150.0 mL of a 0.10 M NaCI...Ch. 15 - ou have two solutions containing solute A. To...Ch. 15 - m>5. Which of the following do you need to know to...Ch. 15 - onsider separate aqueous solutions of HCI and...Ch. 15 - Prob. 7ALQCh. 15 - an one solution have a greater concentration than...Ch. 15 - Prob. 9ALQCh. 15 - You have equal masses of different solutes...Ch. 15 - Which of the following solutions contains the...Ch. 15 - As with all quantitative problems in chemistry,...Ch. 15 - Prob. 13ALQCh. 15 - Prob. 14ALQCh. 15 - solution is a homogeneous mixture. Can you give an...Ch. 15 - ow do the properties of a nonhomogeneous...Ch. 15 - Prob. 3QAPCh. 15 - Prob. 4QAPCh. 15 - n Chapter 14. you learned that the bonding forces...Ch. 15 - n oil spill spreads out on the surface of water,...Ch. 15 - . The “Chemistry in Focus” segment Water, Water...Ch. 15 - Prob. 8QAPCh. 15 - Prob. 9QAPCh. 15 - Prob. 10QAPCh. 15 - A solution is a homogeneous mixture and, unlike a...Ch. 15 - Prob. 12QAPCh. 15 - How do we define the mass percent composition of a...Ch. 15 - Prob. 14QAPCh. 15 - Calculate the percent by mass of solute in each of...Ch. 15 - Calculate the percent by mass of solute in each of...Ch. 15 - Prob. 17QAPCh. 15 - Prob. 18QAPCh. 15 - A sample of an iron alloy contains 92.1 g Fe. 2.59...Ch. 15 - Consider the iron alloy described in Question 19....Ch. 15 - An aqueous solution is to be prepared that will be...Ch. 15 - Prob. 22QAPCh. 15 - A solution is to be prepared that will be 4.50% by...Ch. 15 - Prob. 24QAPCh. 15 - Prob. 25QAPCh. 15 - Hydrogen peroxide solutions sold in drugstores as...Ch. 15 - Prob. 27QAPCh. 15 - A solvent sold for use in the laboratory contains...Ch. 15 - Prob. 29QAPCh. 15 - Prob. 30QAPCh. 15 - What is a standard solution? Describe the steps...Ch. 15 - Prob. 32QAPCh. 15 - 33. For each of the following solutions, the...Ch. 15 - 34. For each of the following solutions, the...Ch. 15 - 35. For each of the following solutions, the mass...Ch. 15 - Prob. 36QAPCh. 15 - 37. A laboratory assistant needs to prepare 225 mL...Ch. 15 - Prob. 38QAPCh. 15 - 39. Standard solutions of calcium ion used to test...Ch. 15 - Prob. 40QAPCh. 15 - 41. If 42.5 g of NaOH is dissolved in water and...Ch. 15 - 42. Standard silver nitrate solutions are used in...Ch. 15 - Prob. 43QAPCh. 15 - Prob. 44QAPCh. 15 - Prob. 45QAPCh. 15 - Prob. 46QAPCh. 15 - Prob. 47QAPCh. 15 - 48. What mass of solute is present in 225 mL of...Ch. 15 - Prob. 49QAPCh. 15 - Prob. 50QAPCh. 15 - Prob. 51QAPCh. 15 - Strong acid solutions may have their concentration...Ch. 15 - Prob. 53QAPCh. 15 - Prob. 54QAPCh. 15 - Prob. 55QAPCh. 15 - Prob. 56QAPCh. 15 - Prob. 57QAPCh. 15 - Prob. 58QAPCh. 15 - Prob. 59QAPCh. 15 - 60. Suppose 325 in L of 0.150 M NaOH is needed for...Ch. 15 - 61. How much water must be added w 500. mL of...Ch. 15 - An experiment calls for 100. mL of 1.25 M HC1. All...Ch. 15 - Prob. 63QAPCh. 15 - 64. Generally only the carbonates of the Group I...Ch. 15 - 65. Many metal ions are precipitated from solution...Ch. 15 - 66. Calcium oxalate, CaCO4, is very insoluble in...Ch. 15 - 67. When aqueous solutions of lead(II) ion are...Ch. 15 - 68. Aluminum ion may be precipitated from aqueous...Ch. 15 - 69. What volume of 0.502 M NaOH solution would be...Ch. 15 - 70. What volume of a 0.500 M NaOH solution would...Ch. 15 - 71. A sample of sodium hydrogen carbonate solid...Ch. 15 - 72. The total acidity in water samples can be...Ch. 15 - Prob. 73QAPCh. 15 - Prob. 74QAPCh. 15 - Prob. 75QAPCh. 15 - Prob. 76QAPCh. 15 - 77. Explain why the equivalent weight of H2SO4 is...Ch. 15 - Prob. 78QAPCh. 15 - Prob. 79QAPCh. 15 - Prob. 80QAPCh. 15 - Prob. 81QAPCh. 15 - Prob. 82QAPCh. 15 - Prob. 83QAPCh. 15 - Prob. 84QAPCh. 15 - 85. How many milliliters of 0.50 N NaOH are...Ch. 15 - 86. What volume of 0.104 N H2SO4is required to...Ch. 15 - 87. What volume of 0.151 N NaOH is required to...Ch. 15 - Prob. 88QAPCh. 15 - 89. A mixture is prepared by mixing 50.0 g of...Ch. 15 - Prob. 90APCh. 15 - 91. Suppose 50.0 mL of 0.250 M CoCl2 solution is...Ch. 15 - Prob. 92APCh. 15 - 93. Calculate the mass of AgCl formed, and the...Ch. 15 - 94. Baking soda (sodium hydrogen carbonate....Ch. 15 - 95. Many metal ions form insoluble sulfide...Ch. 15 - Prob. 96APCh. 15 - Prob. 97APCh. 15 - Prob. 98APCh. 15 - Prob. 99APCh. 15 - Prob. 100APCh. 15 - Prob. 101APCh. 15 - You mix 225.0 mL of a 2.5 M HCl solution with...Ch. 15 - A solution is 0.1% by mass calcium chloride....Ch. 15 - Prob. 104APCh. 15 - Prob. 105APCh. 15 - A certain grade of steel is made by dissolving 5.0...Ch. 15 - Prob. 107APCh. 15 - Prob. 108APCh. 15 - Prob. 109APCh. 15 - Prob. 110APCh. 15 - How many moles of each ion are present in 11.7 mL...Ch. 15 - Prob. 112APCh. 15 - Prob. 113APCh. 15 - Prob. 114APCh. 15 - Concentrated hydrochloric acid is made by pumping...Ch. 15 - A large beaker contains 1.50 L of a 2.00 M...Ch. 15 - Prob. 117APCh. 15 - Prob. 118APCh. 15 - If 10. g of AgNO3 is available, what volume of...Ch. 15 - Prob. 120APCh. 15 - Calcium carbonate, CaCO3, can be obtained in a...Ch. 15 - Prob. 122APCh. 15 - How many milliliters of 18.0 M H2SO4 are required...Ch. 15 - Prob. 124APCh. 15 - When 10. L of water is added to 3.0 L of 6.0 M...Ch. 15 - You pour 150.0 mL of a 0.250 M lead(ll) nitrate...Ch. 15 - How many grams of Ba (NO3)2are required to...Ch. 15 - Prob. 128APCh. 15 - What volume of 0.250 M HCI is required to...Ch. 15 - Prob. 130APCh. 15 - Prob. 131APCh. 15 - Prob. 132APCh. 15 - How many milliliters of 0.105 M NaOH are required...Ch. 15 - Prob. 134APCh. 15 - Prob. 135APCh. 15 - Prob. 136APCh. 15 - Prob. 137CPCh. 15 - A solution is prepared by dissolving 0.6706 g of...Ch. 15 - What volume of 0.100 M NaOH is required to...Ch. 15 - Prob. 140CPCh. 15 - A 450.O-mL sample of a 0.257 M solution of silver...Ch. 15 - A 50.00-mL sample of aqueous Ca(OH)2 requires...Ch. 15 - When organic compounds containing sulfur are...Ch. 15 - Prob. 1CRCh. 15 - Prob. 2CRCh. 15 - Prob. 3CRCh. 15 - Prob. 4CRCh. 15 - Prob. 5CRCh. 15 - Prob. 6CRCh. 15 - Prob. 7CRCh. 15 - Prob. 8CRCh. 15 - Prob. 9CRCh. 15 - Prob. 10CRCh. 15 - Prob. 11CRCh. 15 - Without consulting your textbook, list and explain...Ch. 15 - What does “STP’ stand for? What conditions...Ch. 15 - Prob. 14CRCh. 15 - Prob. 15CRCh. 15 - Define the normal boiling point of water. Why does...Ch. 15 - Are changes in state physical or chemical changes?...Ch. 15 - Prob. 18CRCh. 15 - Prob. 19CRCh. 15 - Prob. 20CRCh. 15 - Define a crystalline solid. Describe in detail...Ch. 15 - Define the bonding that exists in metals and how...Ch. 15 - Prob. 23CRCh. 15 - Define a saturated solution. Does saturated mean...Ch. 15 - Prob. 25CRCh. 15 - When a solution is diluted by adding additional...Ch. 15 - Prob. 27CRCh. 15 - Prob. 28CRCh. 15 - Prob. 29CRCh. 15 - Prob. 30CRCh. 15 - Prob. 31CRCh. 15 - When calcium carbonate is heated strongly, it...Ch. 15 - If an electric current is passed through molten...Ch. 15 - Prob. 34CRCh. 15 - Prob. 35CRCh. 15 - Prob. 36CRCh. 15 - Prob. 37CRCh. 15 - Prob. 38CR
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