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How many moles are there in 2.6 x 10^24 atoms of Calcium? a .7.0 x 10-24 moles of Ca b. 4.4 moles c. 168.36 moles d. .10 moles
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4 votes
How many moles are there in 2.6 x 10^24 atoms of Calcium?

a .7.0 x 10-24 moles of Ca
b. 4.4 moles
c. 168.36 moles
d. .10 moles

User Genespos
by
6.3k points

1 Answer

4 votes
Answer:
There are
6.022140857
(
74
)
×
10
23

calcium

atoms
in 1 mole of
C
a
.

Step-by-step explanation:
You have specified
2.1
×
10
24
calcium atoms.

So
2.1
×
10
24
⋅
calcium atoms
6.022
×
10
23
⋅
calcium atoms mole
1=??mol
User Shreyasva
by
6.2k points
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