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Exercise 6.19
e
Part A
Constants Periodic Table
2.8 mol Cu
How many atoms are in each elemental sample?
Express your answer using two significant figures.
?
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ΥΠΙ ΑΣφ
egs
atoms
N =
ols
>
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Part B
6.3x10-3 mol C
Express your answer using two significant figures.
?
ΟΙ ΑΣΦ
atoms
N =
Submit
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Exercise 6.19
Part C
Constants | Periodic Table
22.1 mol Hg
Express your answer using three significant figures.
How many atoms are in each elemental sample?
?
Sharing
ΥΠΙ ΑΣΦ
ngs
atoms
N =
ols
Submit
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Part D
0.150 mol Na
Express your answer using three significant figures.
?
EVO AED
atoms
N =
Submit
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е
Part A
Constants Periodic Table
5.2x1024 Pb atoms
How many moles of atoms are in each elemental
sample?
Express your answer using two significant figures.
Sharing
V AEO
?
ngs
mol
V =
ols
Submit
Request Answer
Part B
3.15x1022 He atoms
Express your answer using three significant figures.
?
ΟΙ ΑΣΦ
mol
V =
Submit
Request Answer
ne
Part C
Constants Periodic Table
How many moles of atoms are in each elemental
sample?
6.58x1023 K atoms
Express your answer using three significant figures.
at Sharing
tings
ΤΕΙ ΑΣφ
?
>
Tools
mol
= ע
Submit
Request Answer
Part D
4.06x1021 Ca atoms
Express your answer using three significant figures.
AEO
?
mol
V =
Exercise 6.29
Part A
Constants Periodic Table
How many moles of atoms are in each elemental
sample?
1.74 g Zn
ng
V AQ
?
mol
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Part B
21.5 g Ar
?
9 Η ΑΣΦ
mol
V=
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