BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The elements A and Z combine to produce two different compounds: A2Z3 and AZ2. If 0.15 mol of A2Z3 has a mass of 15.9 g and 0.15 mol of AZ2 has a mass of 9.3 g, what are the atomic weights of A and Z?

Interpretation Introduction

Interpretation: The atomic weights of A and Z are needed to be calculated for the given molecules A2Z3 and AZ2 under given conditions.

Concept introduction:

Equation for finding molar mass from mass of a molecule and number moles is,

    Molarmass=MassingramsNumberofmoles 

  • Molar mass of a molecule can be calculated from its molecular formula by taking the sum of atomic masses of all the elements present in it.
  • Moles: One mole is equivalent to the mass of the substance consists same number of units equal to the atoms present in 12g of 12C.
  • From given mass of substance moles could be calculated by using the following formula,

Molesofsubstance GivenmassofsubstanceMolecularmass

Explanation

Let’s take atomic mass of A and Z as x and y respectively.

The mass and the number of moles of A2Z3 is given that 15.9g and 0.15mol.

The mass and the number of moles of AZ2 is given that 9.3g and 0.15mol.

Equation for finding molar mass from mass of a molecule and number moles is,

    Molarmass=MassingramsNumberofmoles 

Therefore,

The molar mass of A2Z3 is,

    Molarmass=15.9g0.15mol=106g/mol

The molar mass of AZ2 is,

    Molarmass=9.3g0.15mol=62g/mol

The molecule A2Z3 contains 2A and 3Z atoms, so the molar mass of the compound can written as,

2x(atomicmassofA)+3y(

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started
Sect-2.7 P-2.11CYUSect-2.8 P-2.12CYUSect-2.8 P-1.1ACPSect-2.8 P-1.2ACPSect-2.8 P-2.1ACPSect-2.8 P-2.2ACPSect-2.8 P-3.1ACPSect-2.8 P-3.2ACPSect-2.8 P-3.3ACPSect-2.8 P-3.4ACPCh-2 P-1PSCh-2 P-2PSCh-2 P-3PSCh-2 P-4PSCh-2 P-5PSCh-2 P-6PSCh-2 P-7PSCh-2 P-8PSCh-2 P-9PSCh-2 P-10PSCh-2 P-11PSCh-2 P-12PSCh-2 P-13PSCh-2 P-14PSCh-2 P-15PSCh-2 P-16PSCh-2 P-17PSCh-2 P-18PSCh-2 P-19PSCh-2 P-20PSCh-2 P-21PSCh-2 P-22PSCh-2 P-23PSCh-2 P-24PSCh-2 P-25PSCh-2 P-26PSCh-2 P-27PSCh-2 P-28PSCh-2 P-29PSCh-2 P-30PSCh-2 P-31PSCh-2 P-32PSCh-2 P-33PSCh-2 P-34PSCh-2 P-35PSCh-2 P-36PSCh-2 P-37PSCh-2 P-38PSCh-2 P-39PSCh-2 P-40PSCh-2 P-41PSCh-2 P-42PSCh-2 P-43PSCh-2 P-44PSCh-2 P-45PSCh-2 P-46PSCh-2 P-47PSCh-2 P-48PSCh-2 P-49PSCh-2 P-50PSCh-2 P-51PSCh-2 P-52PSCh-2 P-53PSCh-2 P-54PSCh-2 P-55PSCh-2 P-56PSCh-2 P-57PSCh-2 P-58PSCh-2 P-59PSCh-2 P-60PSCh-2 P-61PSCh-2 P-62PSCh-2 P-63PSCh-2 P-64PSCh-2 P-65PSCh-2 P-66PSCh-2 P-67PSCh-2 P-68PSCh-2 P-69PSCh-2 P-70PSCh-2 P-71PSCh-2 P-72PSCh-2 P-73PSCh-2 P-74PSCh-2 P-75PSCh-2 P-76PSCh-2 P-77PSCh-2 P-78PSCh-2 P-79PSCh-2 P-80PSCh-2 P-81PSCh-2 P-82PSCh-2 P-83PSCh-2 P-84PSCh-2 P-85PSCh-2 P-86PSCh-2 P-87PSCh-2 P-88PSCh-2 P-89PSCh-2 P-90PSCh-2 P-91PSCh-2 P-92PSCh-2 P-93PSCh-2 P-94PSCh-2 P-95PSCh-2 P-96PSCh-2 P-97PSCh-2 P-98PSCh-2 P-99PSCh-2 P-100PSCh-2 P-101GQCh-2 P-102GQCh-2 P-103GQCh-2 P-104GQCh-2 P-105GQCh-2 P-106GQCh-2 P-107GQCh-2 P-108GQCh-2 P-109GQCh-2 P-110GQCh-2 P-111GQCh-2 P-112GQCh-2 P-113GQCh-2 P-114GQCh-2 P-115GQCh-2 P-116GQCh-2 P-117GQCh-2 P-118GQCh-2 P-119GQCh-2 P-120GQCh-2 P-121GQCh-2 P-122GQCh-2 P-123GQCh-2 P-124GQCh-2 P-125GQCh-2 P-126GQCh-2 P-127GQCh-2 P-128GQCh-2 P-129GQCh-2 P-130GQCh-2 P-131GQCh-2 P-132GQCh-2 P-133GQCh-2 P-134GQCh-2 P-135GQCh-2 P-136GQCh-2 P-137GQCh-2 P-138GQCh-2 P-139GQCh-2 P-140GQCh-2 P-141GQCh-2 P-142GQCh-2 P-143GQCh-2 P-144GQCh-2 P-145GQCh-2 P-146GQCh-2 P-147GQCh-2 P-148GQCh-2 P-149GQCh-2 P-150GQCh-2 P-151GQCh-2 P-152GQCh-2 P-153GQCh-2 P-154GQCh-2 P-155GQCh-2 P-156GQCh-2 P-157GQCh-2 P-158GQCh-2 P-159ILCh-2 P-160ILCh-2 P-161ILCh-2 P-162ILCh-2 P-163ILCh-2 P-164ILCh-2 P-165SCQCh-2 P-166SCQCh-2 P-167SCQCh-2 P-168SCQ

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Saturation refers to the ability of a fat to penetrate a barrier, such as paper. whether or not a fatty acid ch...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How do eating disorders affect health?

Understanding Nutrition (MindTap Course List)

Why did classical astronomers conclude that Earth had to be motionless?

Horizons: Exploring the Universe (MindTap Course List)

What are the symptoms of vitamin A deficiency?

Introduction to General, Organic and Biochemistry

Label the hearts main parts in the diagram below.

Human Biology (MindTap Course List)

What are the three most common chronic conditions affecting women over age 65?

Nutrition Through the Life Cycle (MindTap Course List)

When the current in the portion of the circuit shown in Figure P32.65 is 2.00 A anti increases at a rate of 0.5...

Physics for Scientists and Engineers, Technology Update (No access codes included)

How does sand move on a beach?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin