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MasteringChemistry: Ch X https://session.masteringchemistry.com/myct/itemView?assignmentProblemID-126150421 Ellis Fall 2019 Chemistry B11

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

MasteringChemistry: Ch X
https://session.masteringchemistry.com/myct/itemView?assignmentProblemID-126150421
Ellis Fall 2019
Chemistry B11
<Chapter 7 - 1
Problem 7.112
A toothpaste contains 0.228y by mass sodium fluoride used to prevent dental caries
and 5.4% by mass KNO,, which decreases pain sensitivity. One tube contains 119
g of toothpaste.
Part A
How many moles of Nal are in the tube of toathpaste?
Express your answer using three significant figures.
AEO
Sensodyne
mol Na
Submit
Request Answer
Part B
are in the tube of toothpaste?
How many flucoride ions, l
Express your answer using three significant figures.
AX
fluoride ic
Subrnit
BaquestAnsat
Part C
Hew many grams of sodium ion, Na. 2re in 2 45 4 of toothpaste?
e
Type here to search
TOSHIBA
II

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