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Vilka [71]
3 years ago
10

How many atoms are in 52.3 g of calcium ?

Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Explanation:

one mole contains Avogadro number of particles

So,

40g( the atomic mass) contains 6.023× 10^23 atoms.

so 1 g contains 40÷(6.023×10^23)

so, 52.3 g contains (40×52.3) ÷6.023×10^23

= 3.47× 10^-21

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