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Chemistry & Chemical Reactivity

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

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

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

Analysis of a 10.0-g sample of apatite (a major component of tooth enamel) showed that it was made up of 3.99 g Ca, 1.85 g P, 4.14 g O, and 0.020 g H. List these elements based on relative amounts (moles), from smallest to largest.

Interpretation Introduction

Interpretation:

The components of given sample of apatite are needed to be arranged in the order of smallest to largest in numbers of moles containing elements.

Concept introduction:

Molar masses of Ca, P, O and H are 40g, 30.9g, 15.9g, and 1g respectively.

  • Conversion formula for mass of an atom into number moles,

    Numberofmoles=MassingramsMolarmass 

Explanation

Conversion formula for mass of an atom into number moles,

    Numberofmoles=MassingramsMolarmass 

The masses of elements in the sample are different. Masses of Ca, P, O and H in sample are 3.99g, 1.85g, 4.14g, and 0.02g respectively.

Therefore,

The number of moles calcium is,

  Numberofmoles=3.9940=0.0996mol

The number of moles phosphorous is,

  Numberofmoles=1

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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

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