How many atoms of oxygen are in the chalk in your name? Procedure Part B:How many moles of chalk (CaCO3) does it take to write your name on the chalkboard? Follow theinstructions in the data table to determine the moles of chalk in your name.1Mass of a pieceof chalkMass of chalkafter writingname on theboardMass of chalkused to writeyour nameCalculate themolar mass ofChalk (CaCO3)alculate theimber ofmoles used towrite yourname38.35の.05g.40.378 + 12.0107 +15.9994 = 100.0869 g/mol2. How many formula units of chalk are in your name? Show your work! (formula units are a type ofparticle)3. How many atoms of Oxygen are in the chalk in your name? Show your work!

Mass of a piece of chalk = 38.40 g Mass of chalk after writing name on the board = 38.35 g Mass of…

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How many atoms of oxygen are in the chalk in your name?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter11: Stoichiometry

Section: Chapter Questions

Problem 115A

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

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How many atoms of oxygen are in the chalk in your name?

Procedure Part B:
How many moles of chalk (CaCO3) does it take to write your name on the chalkboard? Follow the
instructions in the data table to determine the moles of chalk in your name.
1
Mass of a piece
of chalk
Mass of chalk
after writing
name on the
board
Mass of chalk
used to write
your name
Calculate the
molar mass of
Chalk (CaCO3)
alculate the
imber of
moles used to
write your
name
38.35の
.05g.
40.378 + 12.0107 +15.9994 = 100.0869 g/mol
2. How many formula units of chalk are in your name? Show your work! (formula units are a type of
particle)
3. How many atoms of Oxygen are in the chalk in your name? Show your work!

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